Transfered from my journal.
http://www.laxjyj.com/www/web/4718544.html
http://bbs.linuxpk.com/thread-4016-2-1.html
/etc/sysconfig/network ->
/etc/sysconfig/networking/devices/ifcfg-eth0 ->
/etc/sysconfig/networking/devices/ifcfg-eth1 ->
/etc/sysconfig/network-scripts/ifcfg-eth0 ->
/etc/sysconfig/network-scripts/ifcfg-eth1
cat network
NETWORKING=yes
HOSTNAME=frontend
GATEWAY=10.4.3.1
cat /etc/rc.d/rc.local
route add -net 192.168.0.0 netmask 255.255.0.0 gw 192.168.100.254 eth1
route add default gw 10.4.3.1 eth0
#>ip r
#>route -n