Como configurar uma bridge no Limux.

Este exemplo 1 foi retirado do site:
http://wiki.mandriva.com/en/Docs/SysAdmin/Networking/Bridge

/etc/sysconfig/network-scripts/ifcfg-br0:
DEVICE=br0
TYPE=Bridge
IPADDR=192.168.0.1
NETMASK=255.255.255.0
ONBOOT=yes

/etc/sysconfig/network-scripts/ifcfg-eth0:
DEVICE=eth0
BRIDGE=br0
ONBOOT=yes

/etc/sysconfig/network-scripts/ifcfg-eth1:
DEVICE=eth1
BRIDGE=br0
ONBOOT=yes


Este exemplo 2 foi retirado do site:
http://www.eriberto.pro.br/wiki/index.php?title=Cria%C3%A7%C3%A3o_de_uma_bridge_no_Debian_GNU/Linux

# apt-get install bridge-utils
# ifconfig eth0 127.0.0.2
# ifconfig eth1 127.0.0.3
# brctl addbr br0
# brctl addif br0 eth0
# brctl addif br0 eth1
# ifconfig br0 up

# cat /etc/network/interfaces

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
address 127.0.0.2
netmask 255.0.0.0

auto eth1
iface eth1 inet static
address 127.0.0.3
netmask 255.0.0.0

auto br0
iface br0 inet static
address 10.0.0.1
netmask 255.0.0.0
gateway 10.0.0.200
bridge_ports eth0 eth1