This bash file enables configuration of encaplimit on tunnel interfaces on EdgeOS.

add_encaplimit_command.sh

#!/bin/bash
temp="node.def"
interface_templates_dir=/opt/vyatta/share/vyatta-cfg/templates/interfaces
ip4ip6_dir=`find ${interface_templates_dir} -type d -name node\.tag | egrep '\/ipv6-tunnel\/node\.tag$'`
ip4ip6_encaplimit_dir="${ip4ip6_dir}/encaplimit"
ip4ip4_dir=`find ${interface_templates_dir} -type d -name node\.tag | egrep '\/tunnel\/node\.tag$'`
ip4ip4_encaplimit_dir="${ip4ip4_dir}/encaplimit"



if [ ! -e ${ip4ip6_encaplimit_dir} ]; then
    echo "Creating ${ip4ip6_encaplimit_dir}"
    sudo mkdir ${ip4ip6_encaplimit_dir}
fi
cat << 'EOF' > ${temp}
type: txt
help: Encaplimit field
val_help: txt; Encaplimit (default 4)

val_help: <0-255>; Sets a fixed encapsulation limit. Default is 4.
val_help: none; Sets no encapsulation limit.

syntax:expression: ($VAR(@) == "none" || (pattern $VAR(@) "[0-9]*")) ; "Must be 'none' or a number between 0-255"
update: sudo ip -6 tunnel change $VAR(../@) encaplimit $VAR(@);
delete: sudo ip -6 tunnel change $VAR(../@) encaplimit 4
EOF
sudo mv ${temp} ${ip4ip6_encaplimit_dir}



if [ ! -e ${ip4ip4_encaplimit_dir} ]; then
    echo "Creating ${ip4ip4_encaplimit_dir}"
    sudo mkdir ${ip4ip4_encaplimit_dir}
fi
cat << 'EOF' > ${temp}
type: txt
help: Encaplimit field
val_help: txt; Encaplimit (default 4)

val_help: <0-255>; Sets a fixed encapsulation limit. Default is 4.
val_help: none; Sets no encapsulation limit.

syntax:expression: ($VAR(@) == "none" || (pattern $VAR(@) "[0-9]*")) ; "Must be 'none' or a number between 0-255"
update: sudo ip tunnel change $VAR(../@) encaplimit $VAR(@);
delete: sudo ip tunnel change $VAR(../@) encaplimit 4
EOF
sudo mv ${temp} ${ip4ip4_encaplimit_dir}