Re: Question about eigrp

[Raul F. Fernandez]

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