[cisco-voip] ITL question - MD5 mismatch

[Ed Leatherman]

Thanks for the tips guys will follow around with it in the morning (hopefully)

On Mon, Feb 20, 2012 at 5:46 PM, Jason Burns <burns.jason at gmail.com> wrote:
> Yep, I agree with Wes here. All of those should line up as they're all MD5
> sums, but each TFTP server does write its very own TFTP file with its own
> CallManager.pem as the signing certificate though so definitely check "show
> itl" on your other servers.
>
> -Jason
>
>
> On Mon, Feb 20, 2012 at 5:41 PM, Wes Sisk <wsisk at cisco.com> wrote:
>>
>> Jason is the authority but I can fill in a few points. Inline, ws.
>>
>> On Feb 20, 2012, at 4:20 PM, Ed Leatherman wrote:
>>
>> I'm walking through Jason Burns' ITL document over on cisco.com
>> https://supportforums.cisco.com/docs/DOC-17679 , using my 8.6.2-2000
>> lab CM.
>>
>> Trying to compare the ITL files on my lab phones versus call manager/tftp:
>>
>> http://i53.tinypic.com/jhdjc1.jpg
>>
>> This is a new CM install. As expected, my 3 lab phones had old ITL's
>> and would not pull a tftp file. I wiped the ITL's on those phones and
>> now they register fine. I downloaded the ITLFile.tlv file from my tftp
>> server and checked the MD5 checksum against what the phone reports,
>> and also with the "show itl" CLI command. none of them match! But the
>> phone registers, no errors.
>>
>> ws: ITL mismatch will not affect registration other than the phone will
>> not accept config file changes so it will not take changes to cm group.
>>
>> Am I incorrect in my understanding that
>> the Hex string on the IP Phone screen is the md5 checksum of the ITL
>> file?
>>
>> ws: the phones i've looked at yes. what model of phone and what load?
>> we've seen where platform webpages displays the serial number (md5sum of the
>> file) in decimal rather than hex:
>> CSCtr75672    OS Admin Cert Web Page displays serial numbers in decimal
>> instead of hex
>>
>>  Am I just comparing apples to oranges here somehow?
>> ws: the md5 hash of the ITL displayed on the phone should match the md5sum
>> you calculate on the ITL file when manually downloading it.  One thing to
>> note - the ITL file may be different for each TFTP server.  Which TFTP
>> server did the phones use? Which TFTP server did you download your file
>> from?  Does it make a difference if you use the binary option on your TFTP
>> client?
>>
>> Thanks!
>> --
>> Ed Leatherman
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>>
>>
>>
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>
>



-- 
Ed Leatherman