NV7100: SIP Pre-Parser Error (UDP) :

[most_ahdy]

Dears,

       I always receive this errors from my NV7100 box ,please advice about the meaning of this error:

From: "nv7100@domain.com"

To: user@domain.com;

Content-Type: multipart/mixed; boundary="--BOUNDARY-STRING--"

This is a multi-part message in MIME format.

----BOUNDARY-STRING--

Content-Type: text/plain; charset=us-ascii

Content-transfer-encoding: 7bit

Content-disposition: inline

NV7100: ADTRAN, Inc. OS version A2.07.00.SB.E

Platform: NetVanta 7100, Part Number 1200796E1, Serial Number LBADTNXXXXXX

2012.07.29 11:13:54 SIP.STACK ERROR MSGBUILDER SIP Pre-Parser Error (UDP) :

----BOUNDARY-STRING----

Thanks,

Mostafa

Message was edited by: matt - removed e-mail addresses and names

[Anonymous · Accepted solution]

Mostafa,

This is typically caused from the "Send SIP keep-alives" and "Use rport" options being enabled on softphones.  Please see this post and see if it answers your question:

Thanks,
Matt

[most_ahdy]

Hi Matt,

   Firstly I do not use softphone in my network, secondly I read your post and I did not get anything, because from what I understand from the function of "Send SIP keep-alives" is to ensure that SIP server is reachable, so why Netvanta 7100 respond with this strange log "SIP.STACK ERROR MSGBUILDER SIP Pre-Parser Error (UDP)".

Thanks,

Mostafa Aly

[Anonymous]

Mostafa,

If that was not the cause of the issue we would need to see the output from a debug sip stack messages when the message appears as well as your current configuration to determine the cause.  If you attach them in a reply please remove passwords, public IPs, and public phone numbers.

Thanks,
Matt

[Anonymous]

As there were no more follow up questions or responses, I went ahead and flagged this post as "Assumed Answered".  If any of the responses on this thread assisted you, please mark them as Correct or Helpful as the case may be with the applicable buttons.  This will make them visible and help other members of the community find solutions more easily.  If you still need assistance or would like to supply any additional information, we would be more than happy to continue working with you on this - just let us know in a reply.

Thanks,
Matt

[most_ahdy]

Sorry Matt  for latency, I'll try your suggestion next week As I am out in Business these days.

[most_ahdy]

Hi Matt,

   Sorry for my long,long,..... latency my time was very busy last days,

You are true there was one employee use a X-lite softphone and this who cause the error messages.

So is this because NV7100 does not understand this type of message issued by X-lite when "Send SIP keep-alives" and "Use rport" setting is enabled?

and if so I wonder if this setting exist only in X-lite or there is some other softphones that contain these type of setting?

Thanks,

Mostafa Aly

[Anonymous]

Mostafa,

I'm glad to hear you tracked it down.  Several softphones have these options, so it is not limited to just X-lite.  The error is produced because they are not valid SIP messages.  Any UDP packets sent to the unit that are not properly formatted SIP messages will produce this error.

Thanks,
Matt