vm-start/ethernet_restreint/clean_no_restrent.sh

#!/bin/sh


if which doas 2> /dev/null
then
    rooter=$(which doas)
elif which sudo 2> /dev/null
then
    rooter=$(which sudo)
    sudo echo "Exec of the script" || exit 1
elif [ "$(id -u)" == "0" ]
then
    rooter=""
else
    echo "Error, no enough rights" >&2
    exit
fi


echo "clean firewall"
echo "0" | $rooter tee /proc/sys/net/ipv4/ip_forward
$rooter sv stop nftables
$rooter sv start nftables

echo "clean veth0 and br0"
$rooter ip link del veth0
$rooter ip link del br0
$rooter ip link del dummy0

echo "clean the rest of the bridges."
$rooter ip link del br1
$rooter ip link del br2