From: CXP Peter (peter@cyscoexpert.com)
Date: Wed Nov 12 2003 - 03:49:54 GMT-3
Directly connected routes do not get redistributed into other protocols if
they sit in ISIS and you perform "redistribute isis". You have to separately
"redistribute connected" into such protocol to get all the routes going.
_______________
Peter
#7247 (R&S, Security, SP)
CyscoExpert Corp.
4433 W. Touhy Ave. Suite 410
Lincolnwood, IL 60712
ph (847) 674-3392
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----- Original Message -----
From: "Joe Chang" <changjoe@earthlink.net>
To: <ccielab@groupstudy.com>
Sent: Wednesday, November 12, 2003 2:58 AM
Subject: ISIS to OSPF redistribution
> This issue was raised here a few years back in the archives, but wasn't
> resolved.
>
> R1 redistributes ISIS into OSPF:
>
> router ospf 1
> redistribute isis level-1-2 subnets
>
> ISIS is configured on the local router as such:
>
> router isis
> net 49.0001.0000.0000.0001.00
> passive-interface lo0
>
> int s1/0.1
> ip router isis
> isis circuit-type level-1-2
>
> ISIS puts these two interfaces into its level-1 database. It also receives
a
> route from an ISIS neighbor, R2. (I can post up the ISIS database if any
wants
> to see it).
>
> The only ISIS route that finds its way into OSPF is the route from R2. The
> directly connected ISIS routes (the serial subinterface and loopback) do
not
> make into the OSPF external route table. In the archive, it seems to been
have
> determined that OSPF would not import routes if those same routes were
also
> directly connected. However I substitued ISIS with EIGRP and the routes
were
> successfully introduced into OSPF. RIP worked the same way ( I did not
> redistribute connected into OSPF).
>
> I also tried fiddling around with the isis circuit types, making the
serial
> subinterface a level-2 only circuit, as well as the ISIS routing as
level-2
> only, with no results.
>
> Am I missing something embarrassingly obvious? Help !
>
> Thanks,
> Joe
>
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