[SR-Users] Question about Proxy-Authorization header in ACK

[Ivan Milivojevic]

Hi all,
 
I have a one question regarding ACK and Proxy-Authorization header.
I am testing Kamailio 3.3 as SIP proxy,default config. I made one call with
2 phones where one has Public IP while other is behind NAT. SIP clients are
Panasonic KX-UT133 and other is 1-NET (ex Sweden Mobile&CDMA provider ,over
50M users) Everything is working just fine, both RTP and SIP. On the other
hand one of the clients,1-NET one, send Proxy-Authorization in ACK when he
receives 200 OK from Kamailio.
 
PUBLIC_IP_USER1 - user 1000
PUBLIC_IP_USER2 - user 1001
 
KAMAILIO ==> 1-NET    
    SIP/2.0 200 OKr\n
    Record-Route: <sip: <sip:KAMAILIO_PUBLIC_IP;lr=on;nat=yes>
KAMAILIO_PUBLIC_IP;lr=on;nat=yes> 
    Via: SIP/2.0/UDP PUBLIC_IP_USER1:5064;rport=5064;branch=z9hG4bK934894606

    Call-ID: 221374358 
    From: blabla <sip:1000@ <sip:1000 at KAMAILIO_PUBLIC_IP>
KAMAILIO_PUBLIC_IP>;tag=507511069 
    To: <sip:1001@ <sip:1001 at KAMAILIO_PUBLIC_IP:5060>
KAMAILIO_PUBLIC_IP:5060>;tag=2148378512 
    CSeq: 21 INVITE 
    Allow: INVITE,ACK,CANCEL,BYE,INFO,UPDATE,OPTIONS,NOTIFY,REFER 
    Contact: <sip:1001@ <sip:1001 at PUBLIC_IP_USER2:1027>
PUBLIC_IP_USER2:1027> 
    Require: replaces 
    Content-Type: application/sdp 
    Server: Panasonic_KX-UT133NE/01.081 (0080f0cedd83) 
    Content-Length: 182 
     
    v=0 
    o=- 1343736535 1343736535 IN IP4 KAMAILIO_PUBLIC_IP 
    s=- 
    c=IN IP4 KAMAILIO_PUBLIC_IP 
    t=0 0 
    m=audio 20412 RTP/AVP 18 
    a=rtpmap:18 G729/8000 
    a=sendrecv 
    a=ptime:20 
    a=nortpproxy:yes 
 
1-NET ==> KAMAILIO
    ACK sip:1001@ <sip:1001 at PUBLIC_IP_USER2:1027> PUBLIC_IP_USER2:1027
SIP/2.0 
    Via: SIP/2.0/UDP PUBLIC_IP_USER1:5064;rport;branch=z9hG4bK642028490 
    Route: <sip: <sip:KAMAILIO_PUBLIC_IP;lr=on;nat=yes>
KAMAILIO_PUBLIC_IP;lr=on;nat=yes> 
    From: blabla <sip:1000@ <sip:1000 at KAMAILIO_PUBLIC_IP>
KAMAILIO_PUBLIC_IP>;tag=507511069 
    To: <sip:1001@ <sip:1001 at KAMAILIO_PUBLIC_IP:5060>
KAMAILIO_PUBLIC_IP:5060>;tag=2148378512 
    Call-ID: 221374358 
    CSeq: 21 ACK 
    Contact: <sip:1000@ <sip:1000 at PUBLIC_IP_USER1:5064>
PUBLIC_IP_USER1:5064> 
    [truncated] Proxy-Authorization: Digest username="1000",
realm="KAMAILIO_PUBLIC_IP", nonce="UBfL8lAXysb5tJCs80ZnthyPl9IzmRZk",
uri="sip:1001 at KAMAILIO_PUBLIC_IP:5060",
response="7824519cdad9f1c2c79027a2d7522344", algorithm=MD5,
cnonce="0a4f113b", q
    Max-Forwards: 70 
    User-Agent: Serbia_2.00 
    Content-Length: 0 
     
I attach txt file with call flow, I can send pcap also.
 
I think that the issue is related with bad client but I need another
opinion.
Does anyone has an idea about this issue?
 
Best Regards,
Ivan
 
 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.sip-router.org/pipermail/sr-users/attachments/20120803/c9d65a7b/attachment-0001.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: sip_trace.log
Type: application/octet-stream
Size: 12773 bytes
Desc: not available
URL: <http://lists.sip-router.org/pipermail/sr-users/attachments/20120803/c9d65a7b/attachment-0001.obj>