From: Desyatnik, Yan (Yan.Desyatnik@xxxxxxx)
Date: Tue Jan 30 2001 - 17:02:49 GMT-3
If you running newer IOS 12.0 and up you can use ip ospf network
point-to-point under loopback int. it will advertise it as /24. If you
running older version you can use area-range to advertise it as /24
Yan
-----Original Message-----
From: Elver Sena [mailto:cled@usa.net]
Sent: Tuesday, January 30, 2001 2:35 PM
To: ccielab@groupstudy.com
Subject: Loopback, OSPF, and 32 mask
Hi,
I've been looking for an answer to this and I can't seem to
find it. I =
looked in the archives, Cisco website, Thomas book, ...
I have a loopback with a mask of 32 and advertised on OSPF.
All other =
OSPF routers were able to see this unicast address and put
it in the =
routing table.
I then changed the mask of the same loopback to 24, and made
the =
appropiate "network..." change in OSPF. No OSPF router is
now putting =
the loopback in the routing table but they do see the router
link for =
the loopback's network in the OSPF database (LSA Type 1).
I once heard that to make OSPF advertise a network mask on a
loopback =
(other than 32) an additional command must be added. Does
any one have =
any ideas?
Thanks,
Elver
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