[Serusers] "200 - Cancelling" Message Problem

[Ricardo Martinez]

Hello List.
	I'm still stuck with this problem.  I really don't know if it is a
configuration problem or maybe a problem with SER, i was hopping that
someone could help me.  I have a NAT'd client, when this client make a call,
and before the called party answer the call the call is canceled, I see a
"200 - Cancelling" message coming from  SER to my NAT'd client.  All the
previus messages goes to the correct port informed in the rport, but this
200-Cancelling message goes to port 5060, so the message didn't reach the
endpooint.  It this a problem with the configuration or a problem with SER?.
Here is SIp debug for the final CANCEL message.

U xx.xx.148.244:64435 -> xx.xx.154.35:5060
  CANCEL sip:2408196 at sipproxy.mydomain.com SIP/2.0
Via: SIP/2.0/UDP 192.168.0.191:5060;branch=z9hG4bK2542303ca430
From: <sip:5555848110 at sipproxy.mydomain.com>;tag=2542303ca4
To: <sip:2408196 at sipproxy.mydomain.com>
Call-ID: 252eb142-ae30-30f0-803c-0002a400f1e9 at 192.168.0.191
CSeq: 30 CANCEL
Date: Thu, 16 Jun 2005 07:45:57 GMT
User-Agent: AddPac SIP Gateway
Content-Length: 0
Max-Forwards: 70

#
U xx.xx.154.35:5060 -> xx.xx.148.231:5060
  CANCEL sip:7072408196 at xx.xx.148.231:5060 SIP/2.0
Record-Route: <sip:2408196 at xx.xx.154.35;ftag=2542303ca4;lr=on>
Via: SIP/2.0/UDP xx.xx.154.35;branch=z9hG4bKe6c7.e2501f15.0
Via: SIP/2.0/UDP
192.168.0.191:5060;received=xx.xx.148.244;branch=z9hG4bK2542303ca430
From: <sip:5555848110 at sipproxy.mydomain.com>;tag=2542303ca4
To: <sip:2408196 at sipproxy.mydomain.com>
Call-ID: 252eb142-ae30-30f0-803c-0002a400f1e9 at 192.168.0.191
CSeq: 30 CANCEL
Date: Thu, 16 Jun 2005 07:45:57 GMT
User-Agent: AddPac SIP Gateway
Content-Length: 0
Max-Forwards: 69
P-hint: H323-Side

                                                                  
#
U xx.xx.154.35:5060 -> xx.xx.148.244:5060
  SIP/2.0 200 cancelling
Via: SIP/2.0/UDP
192.168.0.191:5060;branch=z9hG4bK2542303ca430;received=xx.xx.148.244
From: <sip:5555848110 at sipproxy.mydomain.com>;tag=2542303ca4
To:
<sip:2408196 at sipproxy.mydomain.com>;tag=8acf748d21b6bc66e44e951325ba3f1c-b28
c
Call-ID: 252eb142-ae30-30f0-803c-0002a400f1e9 at 192.168.0.191
CSeq: 30 CANCEL
Server: Sip EXpress router (0.8.14-3 (i386/linux))
Content-Length: 0
Warning: 392 xx.xx.154.35:5060 "Noisy feedback tells:  pid=23757
req_src_ip=xx.xx.148.244 req_src_port=64435
in_uri=sip:2408196 at sipproxy.mydomain.com
out_uri=sip:7072408196 at xx.xx.148.231:5060 via_cnt==1"

This cause a endless CANCEL message flow coming from my endpoint.

Hope that someone can help me here
Thanks in advance
Best Regards


Ricardo Martinez