From: Mas Kato (loomis_towcar@xxxxxxxxxxxxxx)
Date: Mon Apr 08 2002 - 05:09:46 GMT-3
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Charls (sp?),
We're going to need a little more information in order to help you most effecti
vely. You're probably not seeing the EIGRP routes in IGRP because of a subnet m
ask length mismatch. Generally, if the EIGRP mask is longer than the IGRP mask,
you can try shortening it before injecting it into IGRP by using the 'summary-
address' command in OSPF. Of course, your IP topology must support this by not
having other subnets covered by the summary existing elsewhere.
If the EIGRP mask is shorter than the IGRP mask, there are many options dependi
ng on what the exact requirements and restrictions are: Just reachability from
the IGRP domain, explicit routes appearing in the IGRP domain, no statics, etc.
One possibility is using the 'ip default-network' command in the IGRP domain.
But you should use this command with care, because if you simply specify a non-
conforming mask it will also install a static route, which might be a bad thing
. You need to know when and how (and why) you can "lie" to it to get IGRP to le
t the router do what you want.
Regards,
Mas Kato
https://ecardfile.com/id/mkato
> "Jet Cheung" <ccie7559@163.com> <ccielab@groupstudy.com> OSPF IGRP EIGRP redi
stributeDate: Sun, 7 Apr 2002 02:48:11 +0800
>Reply-To: "Jet Cheung" <ccie7559@163.com>
>
>Hi,every body.
> I have a router running three routing protocol. OSPF IGRP and EIGRP. My red
is direction is EIGRP--to--OSPF--to--IGRP. Why my another router connect to IGR
P can't learn the EIGRP's Route. Please help me. I want to find out a method wi
thout chang my redis direction. Note: Have no redis between IGRP and EIGRP.
> Charls
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