Re: VTP transparent mode md5 gets changed

What output do you get from the command: show vtp counters?

On Sun, Mar 18, 2012 at 6:04 AM, Carlos G Mendioroz <tron_at_huapi.ba.ar>wrote:

> 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 <mailto:tron_at_huapi.ba.ar>> LW7
>>
>> EQI Argentina
>>
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> --
> Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI Argentina
>
>
> Blogs and organic groups at http://www.ccie.net
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Received on Sun Mar 18 2012 - 23:14:49 ART