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Re: Loopback, OSPF, and 32 mask posted 01/30/2001
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Elver,

Add the command "ip ospf network point-to-point" under the loopback 
interface.  Then you may advertise it as you need.

HTH,

Les

At 02:35 PM 1/30/2001 -0500, Elver Sena wrote:
>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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----------
J. Les Hardin
Booz·Allen & Hamilton Inc.
(703) 902-6943 (voice)
(703) 902-3508 (fax)

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