CentOS 6.x版本
vi /etc/sysconfig/static-routes
内容为
any net 10.105.0.0 netmask 255.255.0.0 gw 10.105.8.1
CentOS 7.0版本
vi /etc/sysconfig/network-scripts/route-vlan128
10.105.0.0/16 via 10.105.8.3 112.121.178.234/32 via 10.105.8.3