14-setup-gateway.sh

#!/bin/bash
set -x

# Assign IP address to br-ex
OSH_BR_EX_ADDR="172.24.4.1/24"
OSH_EXT_SUBNET="172.24.4.0/24"
sudo ip addr add ${OSH_BR_EX_ADDR} dev br-ex
sudo ip link set br-ex up

# Setup masquerading on default route dev to public subnet
DEFAULT_ROUTE_DEV="ens3"
sudo iptables -t nat -A POSTROUTING -o ${DEFAULT_ROUTE_DEV} -s ${OSH_EXT_SUBNET} -j MASQUERADE