The neighbor command is used in EIGRP in order to define a neighboring router with which to EXCHANGE information of ROUTING. Because of the CURRENT behavior of the command, EIGRP exchanges information of routing with the NEIGHBORS in the form of unicast packets whenever the neighbor command is configured for interface. EIGRP holds on processing all multicast packets that come inbound on that interface. EIGRP also mutes sending multicast packets on that interface.

The ideal behavior of this command is for EIGRP to start sending EIGRP packets as unicast packets to the specified neighbor, but don’t stop sending and receiving multicast packets on that interface. As the command does not behave as intended, the neighbor command must used carefully.

The neighbor command is used in EIGRP in order to define a neighboring router with which to exchange information of routing. Because of the current behavior of the command, EIGRP exchanges information of routing with the neighbors in the form of unicast packets whenever the neighbor command is configured for interface. EIGRP holds on processing all multicast packets that come inbound on that interface. EIGRP also mutes sending multicast packets on that interface.

The ideal behavior of this command is for EIGRP to start sending EIGRP packets as unicast packets to the specified neighbor, but don’t stop sending and receiving multicast packets on that interface. As the command does not behave as intended, the neighbor command must used carefully.