RE: denying tagged routes when redist'ing into RIP/IGRP

From: Omer Ansari (omer@xxxxxxxxxx)
Date: Sat Aug 24 2002 - 10:09:32 GMT-3


   
confirmed.

Tagged routes are denied.

(hope the stencil comes out ok)

R1-------igrp----R2--igrp-(11.0.0.0/8)---R3
(e0/0) |
| |
| |
(igrp) (igrp)
| |
R5---(ospf)---------//------------------R4

igrp routes tagged as 100 when being redist'ed into ospf on R4.

before denying tagged route on R5
ths is seen on R1:
00:41:19: IGRP: received update from 13.1.1.5 on Ethernet0/0
00:41:19: network 50.0.0.0, metric 1600 (neighbor 501)
00:41:19: network 25.0.0.0, metric 8266 (neighbor 8166)
00:41:19: network 11.0.0.0, metric 8266 (neighbor 8166) <----

after denying the tagged route to be redisted from R5:

on R1:
00:43:59: IGRP: received update from 13.1.1.5 on Ethernet0/0
00:43:59: network 50.0.0.0, metric 1600 (neighbor 501)
00:43:59: network 25.0.0.0, metric 8266 (neighbor 8166)

on R5:
!
router igrp 10
 redistribute ospf 10 metric 1500 1500 254 1 1500 route-map ospf2igrp
...
!
route-map ospf2igrp deny 10
 match tag 100
!
route-map ospf2igrp permit 20
!

On Sat, 24 Aug 2002, Omer Ansari wrote:

> Mike,
>
> but the igrp or rip process is a recipient, the donor is ospf/eigrp.
>
> thus
> OSPF[tagged]route ----->{route-map TagBoy}----> IGRP
>
> I think you should be able to block tagged routes. the redistribute engine
> from its usage seems to be modular and not part of a routing protocol, as
> it exhibits the same options/behavior under each RP configuration.
>
> I'll verify in lab sometime and confirm. chwarren confirmed that tagged
> OSPF routes can be denied while redist'ing into RIP.
>
>
>
> > -----Original Message-----
> > From: Michael Snyder [mailto:msnyder@ldd.net]
> > Sent: Friday, August 23, 2002 1:22 AM
> > To: 'Omer Ansari'
> > Cc: ccielab@groupstudy.com
> > Subject: RE: denying tagged routes when redist'ing into RIP/IGRP
> >
> >
> > No. My experience is that route maps and tags do not work into rip or
> > igrp.
> >
> > An sometimes it doesn't work as expected from rip or igrp.
> >
> > If it is just a few routes, a distribute list might be a better general
> > choice from a rip or igrp route donor.
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> > Omer Ansari
> > Sent: Thursday, August 22, 2002 6:14 PM
> > To: ccielab@groupstudy.com
> > Subject: denying tagged routes when redist'ing into RIP/IGRP
> >
> > All,
> >
> > knowing the IGRP/RIP engine doesnt know how to handle tags, is this
> > allowed or do have to stick with ACLs?
> >
> > router igrp 100 (or rip)
> > redistribute ospf 10 route-map TagBoy metric ......
> > !
> > route-map TagBoy deny 10
> > match tag 90
> > route-map TagBoy permit 20
> > !
> >
> > regards,
> > Omer



This archive was generated by hypermail 2.1.4 : Sat Sep 07 2002 - 19:48:36 GMT-3