[reSIProcate] Can sip ACK be used for Register response

[Robert Sparks]

I suspect you had other things going on during that trace.

The ACK looks like its from an earlier transaction (note the  
different CSeq and branches).
The call-id being the same is a little odd.

Do you get this in isolation of any other traffic?

In any case, this isn't a resip-devel question - I'm willing to help  
diagnose what you're fighting, but we probably shouldn't drag this  
list through any more of it.

RjS

On Apr 27, 2007, at 2:58 PM, Yuan, Frank wrote:

> Hi All,
>
>
>
> As far as I know that SIP ACK is used only for final response of  
> INVITE msg, but LinkSys PAP2 used it for Register response.
>
>
>
> Are there any SIP RFCs to allow it?
>
>
>
> Here is the sip trace:
>
>
>
> [04/28/07 05:34:14.775975](sipServer00|3697826736)Rcv Stack Msg:
>
> REGISTER sip:sip01.mynetfone.com.au SIP/2.0^M
>
> Via: SIP/2.0/UDP 124.189.51.79:5060;branch=z9hG4bK-8310ea79^M
>
> Max-Forwards: 70^M
>
> Contact: 09123994 <sip:09123994 at 124.189.51.79:5060>;expires=240^M
>
> To: 09123994 <sip:09123994 at sip01.mynetfone.com.au>^M
>
> From: 09123994 <sip: 
> 09123994 at sip01.mynetfone.com.au>;tag=2d656c4829c17b7ao0^M
>
> Call-ID: b3bb7dca-a99dbfba at 124.189.51.79^M
>
> CSeq: 62263 REGISTER^M
>
> Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER^M
>
> Supported: x-sipura^M
>
> User-Agent: Linksys/PAP2-3.1.9(LSc)^M
>
> Content-Length: 0^M
>
>
>
> [04/28/07 05:34:14.776328](sipServer00|4050291632)CallObj 266 Id  
> b3bb7dca-a99dbf
>
> ba at 124.189.51.79 snd SIP STATUS 401 Msg
>
> SIP/2.0 401 Unauthorized^M
>
> Via: SIP/2.0/UDP 124.189.51.79:5060;branch=z9hG4bK-8310ea79^M
>
> To: "09123994"<sip:09123994 at sip01.mynetfone.com.au>^M
>
> From: <sip:09123994 at sip01.mynetfone.com.au>;tag=2d656c4829c17b7ao0^M
>
> Call-ID: b3bb7dca-a99dbfba at 124.189.51.79^M
>
> CSeq: 62263 REGISTER^M
>
> User-Agent: EN2.5.23^M
>
> WWW-Authenticate: Digest  
> nonce="626791f8_00266",realm="my.com",algorithm=MD5^M
>
> Content-Length: 0^M
>
>
>
> [04/28/07 05:32:14.799145](sipServer00|3697826736)Rcv Stack Msg:
>
> ACK sip:09123994 at sip01.mynetfone.com.au SIP/2.0^M
>
> Via: SIP/2.0/UDP 124.189.51.79:5060;branch=z9hG4bK-49c0bda0^M
>
> To: "09123994" <sip:09123994 at sip01.mynetfone.com.au>^M
>
> From: <sip:09123994 at sip01.mynetfone.com.au>;tag=2d656c4829c17b7ao0^M
>
> Call-ID: b3bb7dca-a99dbfba at 124.189.51.79^M
>
> CSeq: 62261 ACK^M
>
> Content-Length: 0^M
>
> ^M
>
>
>
> Regards,
>
>
>
> Frank Y
>
>
>
>
>
>
>
>
>
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