ip-neighbour:tldr:f8038

This command uses the "sudo ip neighbour" command in Linux to manage the neighbor entries in the ARP table. Here is the breakdown of the command:

• "sudo": It allows running the command as a superuser or with root privileges.
• "ip neighbour": This is the command to manage neighbor entries in the ARP table.
• "${select}": This specifies the action to be performed, such as add, change, or del (delete). The exact value is determined by the variable "${select}".
• "${ip_address}": This represents the IP address of the neighbor entry you want to add or modify. The exact value is determined by the variable "${ip_address}".
• "lladdr": It specifies the link-layer address (MAC address) of the neighbor entry.
• "${new_mac_address}": This represents the new MAC address you want to set for the neighbor entry. The exact value is determined by the variable "${new_mac_address}".
• "dev ${eth0}": Here, "dev" specifies the network interface through which the neighbor entry is reachable, and "${eth0}" is the network interface name. You can replace "${eth0}" with the relevant network interface name.

Overall, this command is used to update or add a neighbor entry in the ARP table with a specific IP address, MAC address, and network interface.