Failed to Receive RIP Update Packets from Neighbors

Procedure

1. Run the display current-configuration configuration rip command to check RIP configurations.
   • Check whether RIP has been enabled on the interface. Only the RIP-enabled interface can receive RIP packets.
   • Check whether the version number in the RIP packet sent by the peer interface matches the version number in the RIP packet received by the local interface. If not, the two interfaces cannot establish the RIP neighbor relationship.

2. Run the display current-configuration interface interface-type interface-number command to view the interface configuration.
   • Check whether the undo rip input command has been executed on the interface. If the command has been executed, the interface does not receive RIP packets.
   • Check whether the authentication modes on the two ends of the link are the same. If the authentication modes are different, the interface cannot receive RIP packets from the peer.