Option to set MTU size (#930)

* option to change mtu value
2024-11-22 16:23:21 +01:00 · 2023-01-12 13:33:22 -05:00 · 2023-01-12 13:33:22 -05:00 · a84c54d3cc
commit a84c54d3cc
parent 28e198f567
66 changed files with 924 additions and 66 deletions
--- 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 $RAM_SIZE
--- a/ct/alpine-v5.sh
+++ b/ct/alpine-v5.sh
@ -118,6 +118,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/archlinux-v5.sh
+++ b/ct/archlinux-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/blocky-v5.sh
+++ b/ct/blocky-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/casaos-v5.sh
+++ b/ct/casaos-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/changedetection-v5.sh
+++ b/ct/changedetection-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/cronicle-v5.sh
+++ b/ct/cronicle-v5.sh
@ -115,6 +115,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/daemonsync-v5.sh
+++ b/ct/daemonsync-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/dashy-v5.sh
+++ b/ct/dashy-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/debian-v5.sh
+++ b/ct/debian-v5.sh
@ -113,6 +113,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/deconz-v5.sh
+++ b/ct/deconz-v5.sh
@ -118,6 +118,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/docker-v5.sh
+++ b/ct/docker-v5.sh
@ -116,6 +116,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/emby-v5.sh
+++ b/ct/emby-v5.sh
@ -118,6 +118,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/emqx-v5.sh
+++ b/ct/emqx-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/esphome-v5.sh
+++ b/ct/esphome-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/grafana-v5.sh
+++ b/ct/grafana-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/grocy-v5.sh
+++ b/ct/grocy-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/heimdalldashboard-v5.sh
+++ b/ct/heimdalldashboard-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/homeassistant-core-v5.sh
+++ b/ct/homeassistant-core-v5.sh
@ -120,6 +120,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/homeassistant-v5.sh
+++ b/ct/homeassistant-v5.sh
@ -118,6 +118,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/homebridge-v5.sh
+++ b/ct/homebridge-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/homepage-v5.sh
+++ b/ct/homepage-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/hyperion-v5.sh
+++ b/ct/hyperion-v5.sh
@ -118,6 +118,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/influxdb-v5.sh
+++ b/ct/influxdb-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/iobroker-v5.sh
+++ b/ct/iobroker-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/jellyfin-v5.sh
+++ b/ct/jellyfin-v5.sh
@ -120,6 +120,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/k0s-v5.sh
+++ b/ct/k0s-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/keycloak-v5.sh
+++ b/ct/keycloak-v5.sh
@ -118,6 +118,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/magicmirror-v5.sh
+++ b/ct/magicmirror-v5.sh
@ -118,6 +118,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/mariadb-v5.sh
+++ b/ct/mariadb-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/meshcentral-v5.sh
+++ b/ct/meshcentral-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/motioneye-v5.sh
+++ b/ct/motioneye-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/mqtt-v5.sh
+++ b/ct/mqtt-v5.sh
@ -115,6 +115,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/n8n-v5.sh
+++ b/ct/n8n-v5.sh
@ -118,6 +118,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/navidrome-v5.sh
+++ b/ct/navidrome-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/nextcloudpi-v5.sh
+++ b/ct/nextcloudpi-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/nginxproxymanager-v5.sh
+++ b/ct/nginxproxymanager-v5.sh
@ -118,6 +118,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/nocodb-v5.sh
+++ b/ct/nocodb-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/node-red-v5.sh
+++ b/ct/node-red-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/omada-v5.sh
+++ b/ct/omada-v5.sh
@ -118,6 +118,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/omv-v5.sh
+++ b/ct/omv-v5.sh
@ -118,6 +118,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/openhab-v5.sh
+++ b/ct/openhab-v5.sh
@ -118,6 +118,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/paperless-ngx-v5.sh
+++ b/ct/paperless-ngx-v5.sh
@ -118,6 +118,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/photoprism-v5.sh
+++ b/ct/photoprism-v5.sh
@ -116,6 +116,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/pihole-v5.sh
+++ b/ct/pihole-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/plex-v5.sh
+++ b/ct/plex-v5.sh
@ -119,6 +119,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/podman-homeassistant-v5.sh
+++ b/ct/podman-homeassistant-v5.sh
@ -121,6 +121,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/podman-v5.sh
+++ b/ct/podman-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/postgresql-v5.sh
+++ b/ct/postgresql-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/prometheus-v5.sh
+++ b/ct/prometheus-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/scrypted-v5.sh
+++ b/ct/scrypted-v5.sh
@ -118,6 +118,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/shinobi-v5.sh
+++ b/ct/shinobi-v5.sh
@ -118,6 +118,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/syncthing-v5.sh
+++ b/ct/syncthing-v5.sh
@ -118,6 +118,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/technitiumdns-v5.sh
+++ b/ct/technitiumdns-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/trilium-v5.sh
+++ b/ct/trilium-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/ubuntu-v5.sh
+++ b/ct/ubuntu-v5.sh
@ -114,6 +114,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/umbrel-v5.sh
+++ b/ct/umbrel-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/unifi-v5.sh
+++ b/ct/unifi-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/uptimekuma-v5.sh
+++ b/ct/uptimekuma-v5.sh
@ -118,6 +118,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/vaultwarden-v5.sh
+++ b/ct/vaultwarden-v5.sh
@ -116,6 +116,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/whoogle-v5.sh
+++ b/ct/whoogle-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/wikijs-v5.sh
+++ b/ct/wikijs-v5.sh
@ -118,6 +118,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/wireguard-v5.sh
+++ b/ct/wireguard-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/yunohost-v5.sh
+++ b/ct/yunohost-v5.sh
@ -113,6 +113,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/zigbee2mqtt-v5.sh
+++ b/ct/zigbee2mqtt-v5.sh
@ -118,6 +118,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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 $RAM_SIZE
--- a/ct/zwave-js-ui-v5.sh
+++ b/ct/zwave-js-ui-v5.sh
@ -117,6 +117,8 @@ function default_settings() {
  NET=dhcp
  echo -e "${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