The passive-interface command behaves differently for
different routing protocols. EIGRP with
passive-interface does not send hello packets and
therefore does not form adjacencies with neighbors.
Very useful when testing new WAN Links in live
environments.
regards,
Phil.
--- "Raul F. Fernandez" <[EMAIL PROTECTED]>
wrote: > Circusnuts,
>
> Yes I too found this to be a bit different. I
> realize in most cases the passive-interface command
> can be used to keep an interface from sending
> routing information update but it can still take
> updates. I see no EIGRP updates on the stub router's
> routing table except for the default route "D*
> 0.0.0.0/0 [90/160514560] via 10.139.248.133, 1d06h,
> Serial0/0.1". What is interesting to me is that it
> has formed a neighbor adjecency with hub router yet
> it does not seem to be sending any ipdates to the
> multicast address 224.0.0.10. Circusnut, the router
> is a 2600 mem and the IOS file is
> SF26AP-12.0.7T.BIN. I am looking for info now...but
> any input from you would be gladly received.
>
> This is the EIGRP config, I am really not dreaming
> :)
>
> router eigrp 64783
> network 10.0.0.0
> network 172.26.0.0
> no auto-summary
> eigrp stub connected
>
>
>
> Sincerely,
>
> Raul F. Fernandez
> -----Original Message-----
> From: Circusnuts <[EMAIL PROTECTED]>
> To: Raul Fernandez <[EMAIL PROTECTED]>; 'Cisco
> group study' <[EMAIL PROTECTED]>
> Date: Sunday, November 12, 2000 9:23 AM
> Subject: Re: Question about eigrp
>
>
>
>
> Hmmm- a couple things you have described don't
> seem EIGRP-like. The network @ the office is EIGRP
> & stubs are usually set as passive or not set EIGRP
> @ all. In both cases they're alive & can transmit
> thought the network, but only "a little help from
> their friend" (their directly connected neighbor).
> Now- the stub command may be needed when multiple
> connection run to a dead end or solo router (I have
> never had this issue). With a default gateway, this
> surprises me... EIGRP would not be doing it's job
> of discovering of a successor or feasible, with
> static commands. Changing path cost I have seen,
> but default- anything I don't recommend. If your
> network is small, this may not be issues. My job
> deals with over 1300 EIGRP routers & we have to
> follow EIGRP to the letter or it things go crazy
> (which happens anyway from time to time :-) If you
> ever get a chance, pick up EIGRP Network Design
> Solutions (Cisco Press). As for the 12.7T, what
> model of router ??? We have been sooo leery with
> the 12.0's, especially in the 7500 series (when it
> comes to EIGRP). I could check a few devices, but I
> can tell you DES, LANE, & EIGRP do not exist well
> beyond 11.2 (22a)...
>
> Let me know, I actually get to talk from some
> experience here :-)
>
> Good Luck !!!
> Phil
> ----- Original Message -----
> From: Raul Fernandez
> To: 'Cisco group study'
> Sent: Saturday, November 11, 2000 8:36 PM
> Subject: Question about eigrp
>
>
> I have been working with a system which has
> under its eigrp process this command "eigrp stub
> connected". From what I gather this perticular
> router acts as a stub and receives no eigrp updates
> to its routing table but does receive and send out
> hellos because it has established a neighbor
> relationship to the hub router. There is a default
> gateway which seem to route all packages out of the
> router and into the hub router. Anyone have any
> links or info on this. IOS version is 12.0(7)T and I
> have looked in the CCO but I see nothing so far.
> Anything on this for reading purposes would be much
> appreciated.
>
> Sincerely,
>
> Raul F. Fernandez
>
>
>
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