Re: VTP transparent mode md5 gets changed

That would be true (that the md5 would match) when the VTP DB is up to
date. But in this case, sw3 and sw4 are not to speed so to say.

Just a quick test you can try: have two switches configured in the same
VTP domain, server and client, and create some vlans. Hash will match.
Now shutdown the trunk and create a new vlan in the server. MD5 hash
will be different, but you have not changed password nor domain name!

-Carlos

ccie routing @ 17/03/2012 20:55 -0300 dixit:
> I believe MD5 needs to match on client on server ..A mismatch in MD5
> says issue with your domain name and/or password (check for space, CCIE
> and CCIE'space' does not work, same with password)..and mismatched MD5
> on client will never add vlans to its database from server eventhough
> your SW2 advertises to SW3 or SW4..
>
>
>
> On Fri, Mar 16, 2012 at 7:08 AM, Carlos G Mendioroz <tron_at_huapi.ba.ar
> <mailto:tron_at_huapi.ba.ar>> wrote:
>
> Yes, right. Even though cisco says "Message Digest 5 (MD5) carries
> the VTP password, if MD5 is configured and used to authenticate the
> validation of a VTP update.", it covers not only the password but
> the whole vtp database.
> So given that sw2 and sw3/4 don't have the same version, it's ok for
> them to differ.
>
> Please share what the problem was. It's nice to post answers to problems
> you encounter, for the sake of sharing info with the community.
>
> -Carlos
>
> Marko Milivojevic @ 15/03/2012 21:32 -0300 dixit:
>
> On Thu, Mar 15, 2012 at 14:26, Carlos G
> Mendioroz<tron_at_huapi.ba.ar <mailto:tron_at_huapi.ba.ar>> wrote:
>
> Hmm, check your sw2 password. sw2 and sw3/sw4 hashes should
> match.
> Careful with cut and paste with copying a trailing space.
>
>
> MD5 hashes are not passwords, but hashes over the database contents.
> While it could still be a password problem, a mismatch in MD5 hash
> does not necessarily mean it is.
>
> OT It's a bit tiresome to troubleshoot this problem in two places...
> Gotta love the crossposting.
>
> --
> Marko Milivojevic - CCIE #18427 (SP R&S)
> Senior CCIE Instructor - IPexpert
>
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Carlos G Mendioroz  <tron_at_huapi.ba.ar>  LW7 EQI  Argentina
Blogs and organic groups at http://www.ccie.net