From: Prakash H Somani (pdsccie@xxxxxxxxxxxxxx)
Date: Wed Jul 31 2002 - 11:35:28 GMT-3
Hi PAul,
I think its a Trick of words....
EIGRP SHOULD NOT KEEP THE LINK UP... my understanding is EIGRP
should not be interesting traffic...
Just create an access-list with eigrp deny thats all...
Friends correct me if I m wrong...
regards....Prakash
On Mon, 29 Jul 2002 Casey, Paul (6822) wrote :
>A question,
>
>I have a 2 routers, connected back to back with serial
>connection, and
>running eigrp and advertising local routes on both sides. No
>problems so
>far.
>I also have an ISDN line between the 2 routers, and the bandwidth
>and delay
>on the link is to be set to the same as the serial interface,
>also EIGRP is
>to be run on the interfaces.... Again no problems.. The route
>should show up
>with 2 possiberl paths, in the routing table, ..... becuase of
>the same
>bandwidth and delay.
>
>Now here's where the problem starts,
>EIGRP is not to keep the ISDN up..
>Also when the serial link is active the router should prefer that
>link over
>the ISDN link...remember bandwidth and delay are set to be the
>same.
>
>Now the problem here is that if I use passive interface on the
>isdn link the
>routes are removed from the routing table, over the ISDN link and
>EIGRP
>doesn't see it as a possible path, and when you pull, out on side
>of the
>serial link, The router cant route to the other side because
>passive
>interfaces has stopped the hello's and the neighbor formation.
>
>But I dont see any other way of stopping eigrp from bring up the
>link...???
>
>I have tried using backup interface, with dialer-watch and not
>using
>passive-interface bri0 and this works fine.. no problems..
>however for
>reading the case seceniro, you are not supposed to put the isdn
>as a backup
>interface as the router is supposed PERFER the serial link when
>both links
>are working.
>
>Also I could use an access-list with the dialer-list, and deny
>eigrp, but
>then no routing info would pass over the isdn link either, as far
>as I know.
>
>I am confused as how you are expected to maintain the routes over
>isdn, and
>at the same time stop eigrp from bringing up the link..
>
>
>Any help appreciated
>kind regards.
>
>Paul..
>
>
>
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