From a84c54d3cc28c6fae840c7435d7e5f602ec52a2a Mon Sep 17 00:00:00 2001
From: tteckster <tteckster@gmail.com>
Date: Thu, 12 Jan 2023 13:33:22 -0500
Subject: [PATCH] Option to set MTU size (#930)

* option to change mtu value
---
 ct/adguard-v5.sh              | 15 ++++++++++++++-
 ct/alpine-v5.sh               | 15 ++++++++++++++-
 ct/archlinux-v5.sh            | 15 ++++++++++++++-
 ct/blocky-v5.sh               | 15 ++++++++++++++-
 ct/casaos-v5.sh               | 15 ++++++++++++++-
 ct/changedetection-v5.sh      | 15 ++++++++++++++-
 ct/cronicle-v5.sh             | 15 ++++++++++++++-
 ct/daemonsync-v5.sh           | 15 ++++++++++++++-
 ct/dashy-v5.sh                | 15 ++++++++++++++-
 ct/debian-v5.sh               | 15 ++++++++++++++-
 ct/deconz-v5.sh               | 15 ++++++++++++++-
 ct/docker-v5.sh               | 15 ++++++++++++++-
 ct/emby-v5.sh                 | 15 ++++++++++++++-
 ct/emqx-v5.sh                 | 15 ++++++++++++++-
 ct/esphome-v5.sh              | 15 ++++++++++++++-
 ct/grafana-v5.sh              | 15 ++++++++++++++-
 ct/grocy-v5.sh                | 15 ++++++++++++++-
 ct/heimdalldashboard-v5.sh    | 15 ++++++++++++++-
 ct/homeassistant-core-v5.sh   | 15 ++++++++++++++-
 ct/homeassistant-v5.sh        | 15 ++++++++++++++-
 ct/homebridge-v5.sh           | 15 ++++++++++++++-
 ct/homepage-v5.sh             | 15 ++++++++++++++-
 ct/hyperion-v5.sh             | 15 ++++++++++++++-
 ct/influxdb-v5.sh             | 15 ++++++++++++++-
 ct/iobroker-v5.sh             | 15 ++++++++++++++-
 ct/jellyfin-v5.sh             | 15 ++++++++++++++-
 ct/k0s-v5.sh                  | 15 ++++++++++++++-
 ct/keycloak-v5.sh             | 15 ++++++++++++++-
 ct/magicmirror-v5.sh          | 15 ++++++++++++++-
 ct/mariadb-v5.sh              | 15 ++++++++++++++-
 ct/meshcentral-v5.sh          | 15 ++++++++++++++-
 ct/motioneye-v5.sh            | 15 ++++++++++++++-
 ct/mqtt-v5.sh                 | 15 ++++++++++++++-
 ct/n8n-v5.sh                  | 15 ++++++++++++++-
 ct/navidrome-v5.sh            | 15 ++++++++++++++-
 ct/nextcloudpi-v5.sh          | 15 ++++++++++++++-
 ct/nginxproxymanager-v5.sh    | 15 ++++++++++++++-
 ct/nocodb-v5.sh               | 15 ++++++++++++++-
 ct/node-red-v5.sh             | 15 ++++++++++++++-
 ct/omada-v5.sh                | 15 ++++++++++++++-
 ct/omv-v5.sh                  | 15 ++++++++++++++-
 ct/openhab-v5.sh              | 15 ++++++++++++++-
 ct/paperless-ngx-v5.sh        | 15 ++++++++++++++-
 ct/photoprism-v5.sh           | 15 ++++++++++++++-
 ct/pihole-v5.sh               | 15 ++++++++++++++-
 ct/plex-v5.sh                 | 15 ++++++++++++++-
 ct/podman-homeassistant-v5.sh | 15 ++++++++++++++-
 ct/podman-v5.sh               | 15 ++++++++++++++-
 ct/postgresql-v5.sh           | 15 ++++++++++++++-
 ct/prometheus-v5.sh           | 15 ++++++++++++++-
 ct/scrypted-v5.sh             | 15 ++++++++++++++-
 ct/shinobi-v5.sh              | 15 ++++++++++++++-
 ct/syncthing-v5.sh            | 15 ++++++++++++++-
 ct/technitiumdns-v5.sh        | 15 ++++++++++++++-
 ct/trilium-v5.sh              | 15 ++++++++++++++-
 ct/ubuntu-v5.sh               | 15 ++++++++++++++-
 ct/umbrel-v5.sh               | 15 ++++++++++++++-
 ct/unifi-v5.sh                | 15 ++++++++++++++-
 ct/uptimekuma-v5.sh           | 15 ++++++++++++++-
 ct/vaultwarden-v5.sh          | 15 ++++++++++++++-
 ct/whoogle-v5.sh              | 15 ++++++++++++++-
 ct/wikijs-v5.sh               | 15 ++++++++++++++-
 ct/wireguard-v5.sh            | 15 ++++++++++++++-
 ct/yunohost-v5.sh             | 15 ++++++++++++++-
 ct/zigbee2mqtt-v5.sh          | 15 ++++++++++++++-
 ct/zwave-js-ui-v5.sh          | 15 ++++++++++++++-
 66 files changed, 924 insertions(+), 66 deletions(-)

diff --git a/ct/adguard-v5.sh b/ct/adguard-v5.sh
index 1925305781..da147dfc83 100644
--- a/ct/adguard-v5.sh
+++ b/ct/adguard-v5.sh
@@ -116,6 +116,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -225,6 +227,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -358,7 +371,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/alpine-v5.sh b/ct/alpine-v5.sh
index e43b5c22d8..db759dd5a9 100644
--- a/ct/alpine-v5.sh
+++ b/ct/alpine-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -223,6 +225,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -337,7 +350,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/archlinux-v5.sh b/ct/archlinux-v5.sh
index c56f9b8a20..da561a1fc9 100644
--- a/ct/archlinux-v5.sh
+++ b/ct/archlinux-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/blocky-v5.sh b/ct/blocky-v5.sh
index d460035c40..59d2c74d30 100644
--- a/ct/blocky-v5.sh
+++ b/ct/blocky-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/casaos-v5.sh b/ct/casaos-v5.sh
index 6540b4d1a1..740930aa90 100644
--- a/ct/casaos-v5.sh
+++ b/ct/casaos-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -228,6 +230,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -351,7 +364,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/changedetection-v5.sh b/ct/changedetection-v5.sh
index 7facabc710..88aa859562 100644
--- a/ct/changedetection-v5.sh
+++ b/ct/changedetection-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -340,7 +353,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/cronicle-v5.sh b/ct/cronicle-v5.sh
index 366f1a15ca..f10caccb05 100644
--- a/ct/cronicle-v5.sh
+++ b/ct/cronicle-v5.sh
@@ -115,6 +115,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -224,6 +226,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -388,7 +401,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/daemonsync-v5.sh b/ct/daemonsync-v5.sh
index 9aeafa7a45..39305f4a33 100644
--- a/ct/daemonsync-v5.sh
+++ b/ct/daemonsync-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/dashy-v5.sh b/ct/dashy-v5.sh
index 68308c59d5..eb18f3a72c 100644
--- a/ct/dashy-v5.sh
+++ b/ct/dashy-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -367,7 +380,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/debian-v5.sh b/ct/debian-v5.sh
index d357e70ce6..f4a146020d 100644
--- a/ct/debian-v5.sh
+++ b/ct/debian-v5.sh
@@ -113,6 +113,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -222,6 +224,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -336,7 +349,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/deconz-v5.sh b/ct/deconz-v5.sh
index 96f6c164dd..4a50fe38a2 100644
--- a/ct/deconz-v5.sh
+++ b/ct/deconz-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/docker-v5.sh b/ct/docker-v5.sh
index 05a3e7d1b4..c90ee4b053 100644
--- a/ct/docker-v5.sh
+++ b/ct/docker-v5.sh
@@ -116,6 +116,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -348,7 +361,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/emby-v5.sh b/ct/emby-v5.sh
index d437d570c6..1c8f403101 100644
--- a/ct/emby-v5.sh
+++ b/ct/emby-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -235,6 +237,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -360,7 +373,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/emqx-v5.sh b/ct/emqx-v5.sh
index 1c7fd2d78b..053de5a044 100644
--- a/ct/emqx-v5.sh
+++ b/ct/emqx-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -340,7 +353,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/esphome-v5.sh b/ct/esphome-v5.sh
index 08853e263c..647a05ca6a 100644
--- a/ct/esphome-v5.sh
+++ b/ct/esphome-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -347,7 +360,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/grafana-v5.sh b/ct/grafana-v5.sh
index d8e30cfae5..71c801d9a6 100644
--- a/ct/grafana-v5.sh
+++ b/ct/grafana-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/grocy-v5.sh b/ct/grocy-v5.sh
index 4c968ca2a3..1f45f89800 100644
--- a/ct/grocy-v5.sh
+++ b/ct/grocy-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -340,7 +353,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/heimdalldashboard-v5.sh b/ct/heimdalldashboard-v5.sh
index 6105a6b5ab..466269e577 100644
--- a/ct/heimdalldashboard-v5.sh
+++ b/ct/heimdalldashboard-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -420,7 +433,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/homeassistant-core-v5.sh b/ct/homeassistant-core-v5.sh
index 8008bf97f1..46bf2b5fb4 100644
--- a/ct/homeassistant-core-v5.sh
+++ b/ct/homeassistant-core-v5.sh
@@ -120,6 +120,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -230,6 +232,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -417,7 +430,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/homeassistant-v5.sh b/ct/homeassistant-v5.sh
index f2c1891550..043eebb4a9 100644
--- a/ct/homeassistant-v5.sh
+++ b/ct/homeassistant-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -230,6 +232,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -416,7 +429,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/homebridge-v5.sh b/ct/homebridge-v5.sh
index 3e8d27d186..f635f3d6aa 100644
--- a/ct/homebridge-v5.sh
+++ b/ct/homebridge-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/homepage-v5.sh b/ct/homepage-v5.sh
index 08342af626..5e293376e7 100644
--- a/ct/homepage-v5.sh
+++ b/ct/homepage-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -347,7 +360,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/hyperion-v5.sh b/ct/hyperion-v5.sh
index ea2db61ee4..f2b83c820a 100644
--- a/ct/hyperion-v5.sh
+++ b/ct/hyperion-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -342,7 +355,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/influxdb-v5.sh b/ct/influxdb-v5.sh
index 0c854a3978..18e5e1ef53 100644
--- a/ct/influxdb-v5.sh
+++ b/ct/influxdb-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/iobroker-v5.sh b/ct/iobroker-v5.sh
index f5e08b8e1b..e586382800 100644
--- a/ct/iobroker-v5.sh
+++ b/ct/iobroker-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/jellyfin-v5.sh b/ct/jellyfin-v5.sh
index 1c500c187a..91b007efaf 100644
--- a/ct/jellyfin-v5.sh
+++ b/ct/jellyfin-v5.sh
@@ -120,6 +120,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -237,6 +239,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -350,7 +363,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/k0s-v5.sh b/ct/k0s-v5.sh
index 194d5d256c..7a57854998 100644
--- a/ct/k0s-v5.sh
+++ b/ct/k0s-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/keycloak-v5.sh b/ct/keycloak-v5.sh
index 78dfca0a21..f23f1c324f 100644
--- a/ct/keycloak-v5.sh
+++ b/ct/keycloak-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -342,7 +355,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/magicmirror-v5.sh b/ct/magicmirror-v5.sh
index 74e32759d7..199ded64ec 100644
--- a/ct/magicmirror-v5.sh
+++ b/ct/magicmirror-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -343,7 +356,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/mariadb-v5.sh b/ct/mariadb-v5.sh
index 72d2af41dc..82f7c71a7d 100644
--- a/ct/mariadb-v5.sh
+++ b/ct/mariadb-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/meshcentral-v5.sh b/ct/meshcentral-v5.sh
index 6f83cd6947..ac9500ffb1 100644
--- a/ct/meshcentral-v5.sh
+++ b/ct/meshcentral-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/motioneye-v5.sh b/ct/motioneye-v5.sh
index 94b1d14a9e..7d4fe34cde 100644
--- a/ct/motioneye-v5.sh
+++ b/ct/motioneye-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -340,7 +353,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/mqtt-v5.sh b/ct/mqtt-v5.sh
index bff596050c..707624b8e1 100644
--- a/ct/mqtt-v5.sh
+++ b/ct/mqtt-v5.sh
@@ -115,6 +115,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -224,6 +226,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/n8n-v5.sh b/ct/n8n-v5.sh
index de9aef3088..69437e2ada 100644
--- a/ct/n8n-v5.sh
+++ b/ct/n8n-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/navidrome-v5.sh b/ct/navidrome-v5.sh
index 53750da7c7..beab097849 100644
--- a/ct/navidrome-v5.sh
+++ b/ct/navidrome-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -352,7 +365,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/nextcloudpi-v5.sh b/ct/nextcloudpi-v5.sh
index 511f39f844..a993d3bcf3 100644
--- a/ct/nextcloudpi-v5.sh
+++ b/ct/nextcloudpi-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/nginxproxymanager-v5.sh b/ct/nginxproxymanager-v5.sh
index ccb6d2968c..94954f7fe4 100644
--- a/ct/nginxproxymanager-v5.sh
+++ b/ct/nginxproxymanager-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -450,7 +463,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/nocodb-v5.sh b/ct/nocodb-v5.sh
index 1b6510da08..1fd5497455 100644
--- a/ct/nocodb-v5.sh
+++ b/ct/nocodb-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -344,7 +357,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/node-red-v5.sh b/ct/node-red-v5.sh
index 0a20730977..3743a71ac4 100644
--- a/ct/node-red-v5.sh
+++ b/ct/node-red-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -377,7 +390,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/omada-v5.sh b/ct/omada-v5.sh
index ef01599ea9..e6aa93bd90 100644
--- a/ct/omada-v5.sh
+++ b/ct/omada-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -235,6 +237,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -339,7 +352,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/omv-v5.sh b/ct/omv-v5.sh
index a9a5366afa..e7ed0d627e 100644
--- a/ct/omv-v5.sh
+++ b/ct/omv-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -342,7 +355,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/openhab-v5.sh b/ct/openhab-v5.sh
index 033c762c41..401b85b731 100644
--- a/ct/openhab-v5.sh
+++ b/ct/openhab-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -342,7 +355,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/paperless-ngx-v5.sh b/ct/paperless-ngx-v5.sh
index 9e6d1c2488..411463c077 100644
--- a/ct/paperless-ngx-v5.sh
+++ b/ct/paperless-ngx-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -409,7 +422,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/photoprism-v5.sh b/ct/photoprism-v5.sh
index 5e5a996113..4691eb675f 100644
--- a/ct/photoprism-v5.sh
+++ b/ct/photoprism-v5.sh
@@ -116,6 +116,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -225,6 +227,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -362,7 +375,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/pihole-v5.sh b/ct/pihole-v5.sh
index a153ed0f6e..a6e3e22fb3 100644
--- a/ct/pihole-v5.sh
+++ b/ct/pihole-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/plex-v5.sh b/ct/plex-v5.sh
index c6d04cf2a0..537f8bf56c 100644
--- a/ct/plex-v5.sh
+++ b/ct/plex-v5.sh
@@ -119,6 +119,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -236,6 +238,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -360,7 +373,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/podman-homeassistant-v5.sh b/ct/podman-homeassistant-v5.sh
index 43d158ecfa..995ca428d7 100644
--- a/ct/podman-homeassistant-v5.sh
+++ b/ct/podman-homeassistant-v5.sh
@@ -121,6 +121,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -230,6 +232,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -391,7 +404,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/podman-v5.sh b/ct/podman-v5.sh
index 9ce8f0d8da..3267054391 100644
--- a/ct/podman-v5.sh
+++ b/ct/podman-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/postgresql-v5.sh b/ct/postgresql-v5.sh
index e1412d2f03..73bf41f58a 100644
--- a/ct/postgresql-v5.sh
+++ b/ct/postgresql-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/prometheus-v5.sh b/ct/prometheus-v5.sh
index 490bd911b3..8b46ddcfc0 100644
--- a/ct/prometheus-v5.sh
+++ b/ct/prometheus-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/scrypted-v5.sh b/ct/scrypted-v5.sh
index 788759d705..1070f90104 100644
--- a/ct/scrypted-v5.sh
+++ b/ct/scrypted-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -342,7 +355,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/shinobi-v5.sh b/ct/shinobi-v5.sh
index 94d0b2f88e..4e3f1107ed 100644
--- a/ct/shinobi-v5.sh
+++ b/ct/shinobi-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -235,6 +237,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -351,7 +364,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/syncthing-v5.sh b/ct/syncthing-v5.sh
index 892c06f184..4825b5ab40 100644
--- a/ct/syncthing-v5.sh
+++ b/ct/syncthing-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -342,7 +355,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/technitiumdns-v5.sh b/ct/technitiumdns-v5.sh
index 696fdd9545..9e55abd1ff 100644
--- a/ct/technitiumdns-v5.sh
+++ b/ct/technitiumdns-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -403,7 +416,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/trilium-v5.sh b/ct/trilium-v5.sh
index 54cbf78659..88cdc01767 100644
--- a/ct/trilium-v5.sh
+++ b/ct/trilium-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -360,7 +373,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/ubuntu-v5.sh b/ct/ubuntu-v5.sh
index 5433958eb4..6fb92d13b7 100644
--- a/ct/ubuntu-v5.sh
+++ b/ct/ubuntu-v5.sh
@@ -114,6 +114,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -231,6 +233,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -344,7 +357,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/umbrel-v5.sh b/ct/umbrel-v5.sh
index 047ec0771d..9a2b7b0eec 100644
--- a/ct/umbrel-v5.sh
+++ b/ct/umbrel-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -228,6 +230,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -349,7 +362,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/unifi-v5.sh b/ct/unifi-v5.sh
index 0255061429..d8f71fe212 100644
--- a/ct/unifi-v5.sh
+++ b/ct/unifi-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -341,7 +354,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/uptimekuma-v5.sh b/ct/uptimekuma-v5.sh
index a82870c4f9..81f77d7567 100644
--- a/ct/uptimekuma-v5.sh
+++ b/ct/uptimekuma-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -358,7 +371,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/vaultwarden-v5.sh b/ct/vaultwarden-v5.sh
index 0a60767267..6500232281 100644
--- a/ct/vaultwarden-v5.sh
+++ b/ct/vaultwarden-v5.sh
@@ -116,6 +116,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -409,7 +422,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/whoogle-v5.sh b/ct/whoogle-v5.sh
index 08741c4c43..a92970eb8f 100644
--- a/ct/whoogle-v5.sh
+++ b/ct/whoogle-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -340,7 +353,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/wikijs-v5.sh b/ct/wikijs-v5.sh
index c38f34d1be..a8785853a0 100644
--- a/ct/wikijs-v5.sh
+++ b/ct/wikijs-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -354,7 +367,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/wireguard-v5.sh b/ct/wireguard-v5.sh
index 4d825bd5b5..333635b5c0 100644
--- a/ct/wireguard-v5.sh
+++ b/ct/wireguard-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -396,7 +409,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/yunohost-v5.sh b/ct/yunohost-v5.sh
index a1382e7fb9..9a44f24e21 100644
--- a/ct/yunohost-v5.sh
+++ b/ct/yunohost-v5.sh
@@ -113,6 +113,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -222,6 +224,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -336,7 +349,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/zigbee2mqtt-v5.sh b/ct/zigbee2mqtt-v5.sh
index 5c8348f4cb..1d4d9cc1f5 100644
--- a/ct/zigbee2mqtt-v5.sh
+++ b/ct/zigbee2mqtt-v5.sh
@@ -118,6 +118,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -227,6 +229,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -371,7 +384,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE
diff --git a/ct/zwave-js-ui-v5.sh b/ct/zwave-js-ui-v5.sh
index 1b5fb451ee..3b7394df4f 100644
--- a/ct/zwave-js-ui-v5.sh
+++ b/ct/zwave-js-ui-v5.sh
@@ -117,6 +117,8 @@ function default_settings() {
   NET=dhcp
   echo -e "${DGN}Using Gateway Address: ${BGN}Default${CL}"
   GATE=""
+  echo -e "${DGN}Using Interface MTU Size: ${BGN}Default${CL}"
+  MTU=""
   echo -e "${DGN}Using DNS Search Domain: ${BGN}Host${CL}"
   SD=""
   echo -e "${DGN}Using DNS Server Address: ${BGN}Host${CL}"
@@ -226,6 +228,17 @@ function advanced_settings() {
       echo -e "${DGN}Using Gateway IP Address: ${BGN}$GATE1${CL}"
     fi
   fi
+  MTU1=$(whiptail --inputbox "Set Interface MTU Size (leave blank for default)" 8 58 --title "MTU SIZE" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
+  exitstatus=$?
+  if [ $exitstatus = 0 ]; then
+    if [ -z $MTU1 ]; then
+      MTU1="Default" MTU=""
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    else
+      MTU=",mtu=$MTU1"
+      echo -e "${DGN}Using Interface MTU Size: ${BGN}$MTU1${CL}"
+    fi
+  fi
   SD=$(whiptail --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" --cancel-button Exit-Script 3>&1 1>&2 2>&3)
   exitstatus=$?
   if [ $exitstatus = 0 ]; then
@@ -354,7 +367,7 @@ export PCT_OPTIONS="
   -hostname $HN
   $SD
   $NS
-  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN
+  -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
   -onboot 1
   -cores $CORE_COUNT
   -memory $RAM_SIZE