From: Michael Snyder (msnyder@xxxxxxx)
Date: Sat Aug 24 2002 - 16:32:08 GMT-3
Yes, what I was trying to say, is even when I had a route map option to
check tags, going into rip or igrp, I had problems with the route maps
working.
Now, when coming out of rip or igrp, of course you can't check tags that
aren't there, but I have had problems even with route maps checking
against something as simple as an access list.
Long story short, If possible, I try to use distribute lists when
dealing with classful routing protocols.
Sorry I wasn't very clear before.
Michael
BTW, if you think about it, it makes sense that the older code modules
used to compile this IOS don't get updated much after they are written.
My rule of thumb is to use the tools for route manipulation that was
available when the ios code was in mainstream use.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
C. Warren
Sent: Saturday, August 24, 2002 12:52 PM
To: 'Omer Ansari'
Cc: ccielab@groupstudy.com
Subject: RE: denying tagged routes when redist'ing into RIP/IGRP
He may have been using a version of IOS that didn't deal well with
this....
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
> Behalf Of Omer Ansari
> Sent: Saturday, August 24, 2002 8:10 AM
> To: 'Michael Snyder'
> Cc: 'ccielab@groupstudy.com'
> Subject: RE: denying tagged routes when redist'ing into RIP/IGRP
>
>
> 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
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