root@dra7xx-evm:~# cat /etc/init.d/bridge.sh
#!/bin/bash
#
### BEGIN INIT INFO
# Provides:          bridge
# Required-Start:    $remote_fs
# Required-Stop:     $remote_fs
# Default-Start:     2 3 5
# Default-Stop:      0 1 6
# Short-Description: Setup vif bridge
# Description:       Start/stop bridge
### END INIT INFO
#

PATH="/sbin:/usr/sbin:/usr/local/sbin";
slaveIfs="1 2 3 4 6 7 8 9 10";
cmd="$1";
[ -z "$cmd" ] && cmd="start";
case "$cmd" in
  startcddbr br0;
    brctl addif br0 eth0;
    brctl addif br0 vif2.1;
    (ifdown eth0 1>/dev/null 2>&1;);
    ifconfig eth0 0.0.0.0 up;
    ifconfig vif2.1 0.0.0.0 up;
    for file in br0 eth0 vif2.1;
    do
      echo "1" > /proc/sys/net/ipv4/conf/${file}/proxy_arp;
      echo "1" > /proc/sys/net/ipv4/conf/${file}/forwarding;
    done;
    echo "1" > /proc/sys/net/ipv4/ip_forward;
    /etc/init.d/networking restart;
    ;;
  stop)
    ifconfig br0 down;
    brctl delbr br0;
    ifconfig br1 down;
    brctl delbr br1;
    ifconfig br2 down;
    brctl delbr br2;
    #ifup eth0; ### Adapt to your needs.
    #ifup eth1; ### Adapt to your needs.
    ;;
  restart,reload)
    $0 stop;
    sleep 3;
    $0 start;
    ;;
esac;