From: Gene Starr (genes@xxxxxxx)
Date: Tue Jun 11 2002 - 00:12:29 GMT-3
The area X range command was intended to allow you to summarize addresses
into area 0 not from it, since area 0 is supposed to be the OSPF "backbone".
I personally like the trick you speak of - redistributing connected into
OSPF and then summarizing as though the router was an ASBR. As for getting
all of the connected interfaces, use a route-map in the redistribute
connected statement and in the route map use the "match interface" clause to
specify which interface you want. That way you don't even have to write an
access-list.
-----Original Message-----
From: Thomas Larus [mailto:tlarus@cox.net]
Sent: Monday, June 10, 2002 10:37 PM
To: ccielab@groupstudy.com
Subject: Why is area 0 range ip_address mask so unreliable? [CLEAN STAMP]
Why can we summarize area 0 addresses sometimes and not others. Is it
perhaps that we are sometimes trying to summarize an address that is
directly connected. There are some people who even have said that you
cannot use summarize area 0 addresses.
If you can't, then how in the world can you ever summarize the classic VLSM
area 0 frame-relay cloud?
Also, regarding the other night's discussion of the trick of redistributing
connected to get the loopback into OSPF and using summary-address to make it
a length that IGRP and RIP could handle, does have its downside in that, of
course, you might not want to redistribute all the other connecteds on the
router into your OSPF domain.
This archive was generated by hypermail 2.1.4 : Tue Jul 02 2002 - 08:12:31 GMT-3