Detailed explanation of route add command

The route add command is used to add new routing entries to the routing table of the Linux system. The syntax of this command is "route add -net netmask gw dev ".

The route add command is used to add new routing entries to the routing table of the Linux system. The syntax of this command is as follows:

route add -net  netmask  gw  dev 

Among them, the meaning of each parameter is as follows:

: Indicates the target network to which the route is to be added, which can be an IP address or network name.

: Indicates the subnet mask of the target network and is used to specify the range of the network.

: Indicates the IP address of the next hop gateway of the route.

: Indicates which network interface through which the data packet is sent.

For example, assuming that you want to send all data packets sent to the 192.168.1.0/24 network through the gateway 192.168.0.1, you can use the following command:

route add -net 192.168.1.0 netmask 255.255.255.0 gw 192.168.0.1 dev eth0

This command will Add an entry to the routing table indicating that all packets sent to the 192.168.1.0/24 network should be sent through the gateway 192.168.0.1 and use the eth0 network interface.

It should be noted that the route add command is temporary, and the routing entry will be lost after the system is restarted. If you need to add a route permanently, you can add the corresponding command to the system startup script, or use the ip route add command to configure it.

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