From: Henry Steuart (henry@xxxxxxxxxxxxxxxxxxxx)
Date: Tue Apr 04 2000 - 17:17:15 GMT-3
Ryan
Sorry to be obstinate, but as anyone who has completed Geotrain's [now
Global Knowledge] ANEW1 will tell you, the summary addresses DO work when
redistributing OSPF into IGRP. This is [one of the things] they are
designed to do. At least under 11.2(15).
As you correctly assert, summary addresses can ALSO be used to summarize
INTO ospf at an ASBR.
I know of AT LEAST 2 CCIEs on this list that can confirm this for you.....
Regards
Henry Steuart
CCSI #97174
At 04:01 PM 4/5/00, Ryan B wrote:
>This does *NOT* work.... summary-address is used for redistribution into
>OSPF from other protocols.. The fact that it even kinda works (until you
>reboot from what I've seen) is more of a bug then anything... In fact, I
>just tried it on 12.0 and I doesn't even "kinda" work, but it did in 11.2.
>
>Again, unless you have multiple classful networks to work with there is no
>way to get this done without static routes.
>
>----- Original Message -----
>From: "Henry Steuart" <henry@resourcenetworks.com>
>To: <stanley_seow@rbrnet.com.sg>
>Cc: <ccielab@groupstudy.com>
>Sent: Tuesday, April 04, 2000 11:12 AM
>Subject: Re: OSPF into IGRP
>
>
> > Stanley
> >
> > Use the ospf "summary address" command on your ASBR to advertise the /24s
> > that cover the smaller subnets. Then redistribute OSPF into IGRP. It is
>a
> > "hack", but required if you need to use a classful protocol like IGRP or
> > RIP(1).
> >
> > E.g.
> > (config)#router ospf 1
> > (config-router)#ospf summary-address 170.0.1.0 255.255.255.0
> > ! covers any smaller (/25 thru /32) subnet in the 170.0.1.0 /24 space...
> >
> > Enjoy!!
> >
> > Henry Steuart
> > CCSI# 97174
> > henry@resourcenetworks.com
> >
> > At 11:49 AM 4/5/00, you wrote:
> >
> > >Hi all,
> > >
> > >Need some help here..
> > >
> > >I am trying to redistribute OSPF into IGRP....
> > >
> > >OSPF have some /24 /29 /30 routes whereas IGRP have only
> > >/24 routes....
> > >
> > >all of them are in 170.100.0.0 networks.
> > >
> > >What are the command to redistribute all the subnets from OSPF into
> > >IGRP..
> > >
> > >How do I summarize those /29 and /30 routes into /24 routes in OSPF ??
> > >
> > >Thanks
> > >
> > >
> > >Stanley
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