Add or delete route 1, specify interface 1, add host route # route add 10.10.10.2 dev tun0 or # route add-host 10.10.10.2 dev tun02, delete host route # route del 10.10.10.2 dev tun0 or route del -host 10.10.10.2 dev tun03: add a network route # route add-net 10.10.10.0/24 dev eth1 or # route add-net 10.10.10.0 netmask route 255.255.0 dev tun04, delete a network route # route del-net 192.168.1.0 /24 dev eth1 or # route del-net 10.10.10.0 netmask route 255.255.0 dev tun05, add default route # route add default Dev eth06, delete default route # route del default dev eth0 2. Specify gateway 1. add host route # route add 10.10.10.0 gw 192.168.0.1 or # route add-host 10.10.0 gw 192.168.0.12, delete host route # route del 10.10.0 gw 192.168.0.1 or # route del-host 10.10.10.0 gw 192.168.0.1 note: 192.168.0.1 is a gateway address in the actual network. 3. add the network route add-net 10.10.0.0/24 gw 192.168.0.1 or route add-net 10.10.0.0 netmask gw 192.168.0.14, delete the network route del-net 10.10.0.0/24 gw 192.168.0.1 or route del- net 10.10.0.0 netmask 255.255.255.0 gw 192.168.0.1 note: remember-net gw dev three options! Note: 192.168.0.1 is a meaningful address in the actual network. Note: The Gateway and interface must be associated! Note: The restart network configured with the route command is invalid! Note: The permanent configuration is in the/etc/rc. local or network file!