#!/bin/bash

echo "Configuring eth0"
ifconfig eth0 10.2.1.2 netmask 255.255.255.0 up
echo "Configuring eth1"
ifconfig eth1 10.3.1.2 netmask 255.255.255.0 up

sleep 1

echo "Add default route into default table"
ip route add 10.1.1.0/24 dev eth0 scope link
ip route add 10.1.2.0/24 dev eth0 scope link
ip route add 10.3.2.0/24 dev eth1 scope link

sysctl -w net.ipv4.ip_forward=1

# configure tproxy
ip rule add fwmark 1 lookup 100
ip route add local 0.0.0.0/0 dev lo table 100

iptables -t mangle -A PREROUTING -p tcp -j MARK --set-mark 0x0001

echo "coupled" > /proc/sys/net/ipv4/tcp_congestion_control