# route add –host 192.168.168.110 dev eth0 # route add –host 192.168.168.119 gw 192.168.168.1

# route add –net IP netmask MASK eth0 # route add –net IP netmask MASK gw IP # route add –net IP/24 eth1

# route add default gw IP

# route del –host 192.168.168.110 dev eth0

1.在/etc/rc.local里添加
方法：
route add -net 192.168.3.0/24 dev eth0
route add -net 192.168.2.0/24 gw 192.168.3.254
2.在/etc/sysconfig/network里添加到末尾
方法：GATEWAY=gw-ip 或者 GATEWAY=gw-dev
3./etc/sysconfig/static-router :
any net x.x.x.x/24 gw y.y.y.y