From: Stephen Oliver (stevie_oliver@xxxxxxxxxxx)
Date: Wed Oct 24 2001 - 05:57:34 GMT-3
How many ways can you accomplish VLSM into IGRP redistribution.
I have a router running OSPF on one interface and IGRP on the other. It's
an ASBR. I have a class B address on both sides but with a /24 mask. The
OSPF side is all area 0 and from another router in that area some /26 and
/27 routes are being sent. When redistributing these routes into IGRP what
are the options.
Every book I read says the ospf command
# summary-address x.x.x.x x.x.x.x
is used when summarizing external routes into OSPF however this is the only
way I can get the routes accross to IGRP. I put the command
# summary-address x.x.x.x 255.255.255.0
on the ASBR for each of the /26 and /27 routes and they go over to the IGRP
router. A route to null 0 is created on the ASBR as expected but since this
is /24 the more specific route of /26 or /27 takes precenence.
Is this the proper way to do this ? I got the problem from a well known
testing software page and they use the Area Range command which seems
irrelevant in this case and does not work anyway.
Thanks, Stevie.
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