neighbor eigrp

Unanswered Question
Mar 26th, 2010
User Badges:

In a lan with several routers with interfaces in the same networks, is it possible to make that only ones are neighbors an others not?

This is an example:


routerA


router eigrp 200

network 10.0.0.0

no auto-summary


Router B


router eigrp 200

network 10.0.0.0

no auto-summary


Router C


router eigrp 200

network 10.0.0.0

no auto-summary


I wanto to only RouterA and Router B are neighbors eigrp


Thanks


Marcelo

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
Loading.
MARCELO MATURO Fri, 03/26/2010 - 07:20
User Badges:

passive- interface is no an option y my real situation. Filtering maybe a solution.

There is the option to convert the peering to unicast ( neighbor x.x.x.x interface x), but i don´t know that if this command stop all the multicast or only the network involved.


Marcelo

Giuseppe Larosa Fri, 03/26/2010 - 07:18
User Badges:
  • Super Silver, 17500 points or more
  • Hall of Fame,

    Founding Member

Hello Marcelo,

in addition to using passive-interface, you could use EIGRP authentication with matching parameters only on devices that should be neighbors


see


http://www.cisco.com/en/US/docs/ios/iproute_eigrp/configuration/guide/ire_cfg_eigrp_ps6350_TSD_Products_Configuration_Guide_Chapter.html#wp1062735




Hope to help

Giuseppe

Tharak Abraham Fri, 03/26/2010 - 07:19
User Badges:
  • Bronze, 100 points or more

Marcelo,


Eigrp message authentication might help ya !


(config)#key chain KEY
(config)#key 1
(config)#key-string crack


(config)#interface eth0
(config-subif)#ip authentication mode eigrp 10 md5
(config-subif)#ip authentication key-chain eigrp 10 KEY

Actions

This Discussion