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→Start Script
= With SystemD ==
= With SystemD =
== Enable Nat Script ==
== Start Script ==
<source lang="bash">#!/bin/bash
<source lang="bash">#!/bin/bash
Ariel=15.17.170.200
Ariel=15.17.170.200
function add_nat {
function add_nat {
sudo iptables -t nat -A POSTROUTING -s ${1}/32 -o tun0 -j MASQUERADE
sudo iptables -t nat -A POSTROUTING -s ${1}/32 -d 10.0.192.0/18 -o tun0 -j MASQUERADE
}
function add_wlan_nat {
sudo iptables -t nat -A POSTROUTING -s ${1}/32 -o wlan0 -j MASQUERADE
}
}
add_nat ${Marito}
add_nat ${Marito}
add_nat ${Mapper}
add_nat ${Mapper}
sudo iptables -t nat --line-numbers -L -n -v<source>
add_wlan_nat ${Carabanchel}
sudo iptables -t nat --line-numbers -L -n -v
</source>
== Stop Script ==
<source lang="bash">#!/bin/bash
sudo sysctl -w net.ipv4.ip_forward=0
function clear_nat {
for i in $( sudo iptables -t nat -L -n -v --line-numbers | grep ^[0-9] | awk '{ print $1 }' )
do sudo iptables -t nat -D POSTROUTING 1
done
}
function add_nat {
sudo iptables -t nat -A POSTROUTING -s ${1}/32 -o tun0 -j MASQUERADE
}
clear_nat
sudo iptables -t nat --line-numbers -L -n -v</source>
== Multiple routes for one source ==
* The more specific rule must go first
sudo iptables -t nat -A POSTROUTING -s 15.17.170.206 -d 10.0.192.0/18 -o tun0 -j MASQUERADE
sudo iptables -t nat -A POSTROUTING -s 15.17.170.206 -o wlan0 -j MASQUERADE