[OpenSER-Users] Loop Detection

[Daniel Corbe]

I have a problem.  I'm taking INVITES from a PortaSIP proxy and handing it
back with a new request URI and To: header; however, their loop
detection algorithm is calling this a loop.
Is there a way to fix this from within OpenSER?  I'm assuming my proxy would
have to send an INVITE with a completely new branch tag and From tag?

10 Dec 14:52:30.831/GLOBAL/b2bua: SENDING message to 206.71.169.114:5060:
INVITE sip:*94310 at 206.71.169.114:5060 SIP/2.0
Via: SIP/2.0/UDP 216.151.143.69:5061
;branch=z9hG4bKecaee2770d3db1e3a26ddc741511b55b;rport
Max-Forwards: 70
From: <sip:18589520696 at 216.151.143.69>;tag=3b383c39c2bc93d8106f4425074ef399
To: <sip:*94310 at 206.71.169.114>
Call-ID: 722814-3406315950-714741 at msx69.mydomain.com~1o
CSeq: 200 INVITE
Contact: Anonymous <sip:216.151.143.69:5061>
Expires: 300
User-Agent: Sippy
cisco-GUID: 2108088383-2809270748-2290810900-572575638
h323-conf-id: 2108088383-2809270748-2290810900-572575638
Content-Length: 201
Content-Type: application/sdp
 v=0
o=Sippy 156402124 0 IN IP4 216.151.143.69
s=sip call
t=0 0
m=audio 42486 RTP/AVP 18 0 8
c=IN IP4 216.151.143.77
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:18 G729/8000
a=sendrecv

10 Dec 14:52:30.841/GLOBAL/b2bua: RECEIVED message from 206.71.169.114:5060:
SIP/2.0 100 Giving a try
Via: SIP/2.0/UDP 216.151.143.69:5061
;branch=z9hG4bKecaee2770d3db1e3a26ddc741511b55b;rport=5061
From: <sip:18589520696 at 216.151.143.69>;tag=3b383c39c2bc93d8106f4425074ef399
To: <sip:*94310 at 206.71.169.114>
Call-ID: 722814-3406315950-714741 at msx69.mydomain.com~1o
CSeq: 200 INVITE
Server: OpenSER (1.2.2-notls (i386/freebsd))
Content-Length: 0

10 Dec 14:52:30.842/GLOBAL/ser[69804]: RECEIVED message from
206.71.169.114:5060:
INVITE sip:1a10000000009 at 216.151.143.69:5060 SIP/2.0
Record-Route: <sip:206.71.169.114
;lr=on;ftag=3b383c39c2bc93d8106f4425074ef399;did=fad.a2f4eb52>
Via: SIP/2.0/UDP 206.71.169.114;branch=z9hG4bK961c.41ea57a.0
Via: SIP/2.0/UDP 216.151.143.69:5061
;branch=z9hG4bKecaee2770d3db1e3a26ddc741511b55b;rport=5061
Max-Forwards: 69
From: <sip:18589520696 at 216.151.143.69>;tag=3b383c39c2bc93d8106f4425074ef399
To: <sip:1a10000000009 at 216.151.143.69:5060>
Call-ID: 722814-3406315950-714741 at msx69.mydomain.com~1o
CSeq: 200 INVITE
Contact: Anonymous <sip:216.151.143.69:5061>
Expires: 300
User-Agent: Sippy
cisco-GUID: 2108088383-2809270748-2290810900-572575638
h323-conf-id: 2108088383-2809270748-2290810900-572575638
Content-Length: 201
Content-Type: application/sdp
P-hint: rr-enforced
 v=0
o=Sippy 156402124 0 IN IP4 216.151.143.69
s=sip call
t=0 0
m=audio 42486 RTP/AVP 18 0 8
c=IN IP4 216.151.143.77
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:18 G729/8000
a=sendrecv

10 Dec 14:52:30.842/722814-3406315950-714741 at msx69.mydomain.com~1o/ser[69804]:
processing INVITE received from 206.71.169.114
10 Dec 14:52:30.843/GLOBAL/ser[69804]: SENDING message to
206.71.169.114:5060:
SIP/2.0 100 trying -- your call is important to us
Via: SIP/2.0/UDP 206.71.169.114;branch=z9hG4bK961c.41ea57a.0
Via: SIP/2.0/UDP 216.151.143.69:5061
;branch=z9hG4bKecaee2770d3db1e3a26ddc741511b55b;rport=5061
From: <sip:18589520696 at 216.151.143.69>;tag=3b383c39c2bc93d8106f4425074ef399
To: <sip:1a10000000009 at 216.151.143.69:5060>
Call-ID: 722814-3406315950-714741 at msx69.mydomain.com~1o
CSeq: 200 INVITE
Server: Sip EXpress router (0.9.6 (i386/freebsd))
Content-Length: 0

10 Dec 14:52:30.844/GLOBAL/ser[69804]: SENDING message to
216.151.143.69:5061:
INVITE sip:1a10000000009 at 216.151.143.69:5061 SIP/2.0
Record-Route: <sip:216.151.143.69;ftag=3b383c39c2bc93d8106f4425074ef399;lr>
Record-Route: <sip:206.71.169.114
;lr=on;ftag=3b383c39c2bc93d8106f4425074ef399;did=fad.a2f4eb52>
Via: SIP/2.0/UDP 216.151.143.69;branch=
z9hG4bK961c.003d31266db19cfeb34aa550d186a976.0
Via: SIP/2.0/UDP 206.71.169.114;branch=z9hG4bK961c.41ea57a.0
Via: SIP/2.0/UDP 216.151.143.69:5061
;branch=z9hG4bKecaee2770d3db1e3a26ddc741511b55b;rport=5061
Max-Forwards: 16
From: <sip:18589520696 at 216.151.143.69>;tag=3b383c39c2bc93d8106f4425074ef399
To: <sip:1a10000000009 at 216.151.143.69:5060>
Call-ID: 722814-3406315950-714741 at msx69.mydomain.com~1o
CSeq: 200 INVITE
Contact: Anonymous <sip:216.151.143.69:5061>
Expires: 300
User-Agent: Sippy
cisco-GUID: 2108088383-2809270748-2290810900-572575638
Content-Length: 201
Content-Type: application/sdp
P-hint: rr-enforced
 v=0
o=Sippy 156402124 0 IN IP4 216.151.143.69
s=sip call
t=0 0
m=audio 42486 RTP/AVP 18 0 8
c=IN IP4 216.151.143.77
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:18 G729/8000
a=sendrecv

10 Dec 14:52:30.844/GLOBAL/b2bua: RECEIVED message from 216.151.143.69:5060:
INVITE sip:1a10000000009 at 216.151.143.69:5061 SIP/2.0
Record-Route: <sip:216.151.143.69;ftag=3b383c39c2bc93d8106f4425074ef399;lr>
Record-Route: <sip:206.71.169.114
;lr=on;ftag=3b383c39c2bc93d8106f4425074ef399;did=fad.a2f4eb52>
Via: SIP/2.0/UDP 216.151.143.69;branch=
z9hG4bK961c.003d31266db19cfeb34aa550d186a976.0
Via: SIP/2.0/UDP 206.71.169.114;branch=z9hG4bK961c.41ea57a.0
Via: SIP/2.0/UDP 216.151.143.69:5061
;branch=z9hG4bKecaee2770d3db1e3a26ddc741511b55b;rport=5061
Max-Forwards: 16
From: <sip:18589520696 at 216.151.143.69>;tag=3b383c39c2bc93d8106f4425074ef399
To: <sip:1a10000000009 at 216.151.143.69:5060>
Call-ID: 722814-3406315950-714741 at msx69.mydomain.com~1o
CSeq: 200 INVITE
Contact: Anonymous <sip:216.151.143.69:5061>
Expires: 300
User-Agent: Sippy
cisco-GUID: 2108088383-2809270748-2290810900-572575638
Content-Length: 201
Content-Type: application/sdp
P-hint: rr-enforced
 v=0
o=Sippy 156402124 0 IN IP4 216.151.143.69
s=sip call
t=0 0
m=audio 42486 RTP/AVP 18 0 8
c=IN IP4 216.151.143.77
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:18 G729/8000
a=sendrecv

10 Dec 14:52:30.847/GLOBAL/b2bua: SENDING message to 216.151.143.69:5060:
SIP/2.0 482 Loop Detected
Via: SIP/2.0/UDP 216.151.143.69;branch=
z9hG4bK961c.003d31266db19cfeb34aa550d186a976.0
Via: SIP/2.0/UDP 206.71.169.114;branch=z9hG4bK961c.41ea57a.0
Via: SIP/2.0/UDP 216.151.143.69:5061
;branch=z9hG4bKecaee2770d3db1e3a26ddc741511b55b;rport=5061
Record-Route: <sip:216.151.143.69;ftag=3b383c39c2bc93d8106f4425074ef399;lr>
Record-Route: <sip:206.71.169.114
;lr=on;ftag=3b383c39c2bc93d8106f4425074ef399;did=fad.a2f4eb52>
From: <sip:18589520696 at 216.151.143.69>;tag=3b383c39c2bc93d8106f4425074ef399
To: <sip:1a10000000009 at 216.151.143.69:5060>
Call-ID: 722814-3406315950-714741 at msx69.mydomain.com~1o
CSeq: 200 INVITE
Server: Sippy
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.kamailio.org/pipermail/users/attachments/20071210/054f3822/attachment.htm