From: Eric Lemmons (ericlemmons@xxxxxxxxx)
Date: Mon Oct 22 2001 - 17:01:04 GMT-3
   
If  you have the memory, it might be worth upgrading the IOS to
12.0.20 perhaps.
Eric
--- John Neiberger <neiby@excite.com> wrote:
> This shouldn't be necessary if I'm using simple password
> authentication,
> which is the case.  At one point I tried MD5 to see if the results
> were
> different, but they weren't.
>
> Keep in mind--and I don't think I mentioned this before--I have
> three other
> routers in area 0 and they authenticate just fine.  It is only
> across the
> virtual link that authentication breaks.
>
> Someone else just suggested that I use two configuration lines for
> the
> virtual link:  one to turn on authentication and the other to
> specify the
> key.  I'm going to give that a shot tonight.
>
> Thanks,
> John
>
> On Mon, 22 Oct 2001 16:29:26 +0100, Ademola Osindero wrote:
>
> |  John,
> |
> |  You need to add
> |
> |    area 0 authentication message-digest
> |
> |  to R5 to inform it that this kind of authentication is been used
> in the
> |  backbone. Show ip ospf on any router should inform you whether
> |  authentication is been used in area 0 since all routers talk
> with it.
> |
> |  Also ensure that the password used in area 0 is the same as that
> used for
>
> |  the virtual link. the Virtual link only serves to extend a
> "cut-off"
> router
> |  to area 0. The cut off router should then be informed of what
> holds in
> the
> |  backbone by specifying area 0 authentication message-digest (or
> whatever).
> |  Since there is no direct interface on which to use ip ospf
> |  message-digest-key , the virtual-link serves this place and uses
> area 1
> |  virtual-link ip-address message-digest-key command.
> |
> |  Ademola
> |
> |
> |
> |  At 08:01 AM 10/22/2001 -0700, John Neiberger wrote:
> |  >Yep, I'm positive.  I've retyped them many, many times and I
> learned the
> |  >hard way a couple of years ago the dangers of white space at
> the end of
> |  >passwords.
> |  >
> |  >Thanks,
> |  >John
> |  >
> |  >On Mon, 22 Oct 2001 02:11:44 -0400 (EDT), Jason Gardiner wrote:
> |  >
> |  >|  White spaces at the end of passwords are killers.  Are you
> sure the
> |  >|  password match exactly?
> |  >|
> |  >|  Thanks,
> |  >|
> |  >|  Jason Gardiner
> |  >|  Supervisor, Engineering Services
> |  >|  Sprint <Insert Division Name>
> |  >|
> |  >|  "You can swim all day in the Sea of Knowledge and
> |  >|  still come out completely dry.  Most people do."
> |  >|
> |  >|  - Norton Juster
> |  >|
> |  >|  On Sun, 21 Oct 2001, John Neiberger wrote:
> |  >|
> |  >|  > I was working on Fatkid 401 OSPF lab tonight and I could
> never get
> the
> |  >|  > virtual link authentication to work correctly.  No matter
> what I
> did, I
> |  >|  > would get errors stating I had a mismatched authentication
> key.
> Well,
> |  >the
> |  >|  > key was "cisco" so that's not too hard to type in
> correctly.
> Still, I
> |  >|  > played with the configs on the two relevant routers and I
> rebooted
> them
> |  >|  > several times, all to no avail.
> |  >|  >
> |  >|  > I even changed the authentication type to md5 and got the
> same
> message.
> |  >|  > Very weird. I thought at one point this was an IOS issue
> because
> one
> |  >router
> |  >|  > was running 11.2(7) and the other 11.2(25a).  I upgraded
> the first
> one
> |  >to
> |  >|  > 11.2(25a) and I still see the same error.
> |  >|  >
> |  >|  > I peeked at the solution and saw that I had it configured
> exactly
> how
> |  >they
> |  >|  > suggested.  Then I checked CCO and saw that they suggest
> the same
> |  >|  > configuration.
> |  >|  >
> |  >|  > Do any of you have any tips for configuring virtual link
> |  >authentication?
> |  >|  > This seems to be a pretty simple config and I don't see
> what I'm
> |  >missing.
> |  >|  >
> |  >|  > Thanks,
> |  >|  > John
> |  >|  >
> |  >|  >
> |  >|  >
> |  >|  >
> |  >|  >
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