添加到主机的路由 # route add -host 192.168.1.2 dev eth0 # route add -host 10.20.30.148 gw 10.20.30.40 #添加到10.20.30.148的网络 添加到网络的路由 # route add -net 10.20.30.40 netmask 255.255.255.248…