# cat /etc/sysconfig/network-scripts/ifcfg-eth1 
DEVICE=eth1
BOOTPROTO=static
ONBOOT=yes
HWADDR=00:25:90:34:6c:db
NM_CONTROLLED=no
IPADDR=1.2.3.4
NETMASK=255.255.255.240
GATEWAY=5.6.7.8
BRIDGE="bridge0"