gateway 0.0.0.0 不走路由局域网内arp
-net 网路路由
-host 服务器路由
netmask 子网掩码
route add -net 10.76.0.0/16 gw 10.76.3.245 eth1
route add -net 10.76.0.0/16 netmask 255.255.0.0 gw 10.76.3.245 eth1
route add -host 10.76.3.1 gw 10.76.3.245 eth1
route del -net 10.76.0.0/16