3 Aug
2012
3 Aug
'12
3:31 a.m.
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@KAMAILIO_PUBLIC_IP>
KAMAILIO_PUBLIC_IP>;tag=507511069
To: <sip:1001@ <sip:1001@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@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@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@KAMAILIO_PUBLIC_IP>
KAMAILIO_PUBLIC_IP>;tag=507511069
To: <sip:1001@ <sip:1001@KAMAILIO_PUBLIC_IP:5060>
KAMAILIO_PUBLIC_IP:5060>;tag=2148378512
Call-ID: 221374358
CSeq: 21 ACK
Contact: <sip:1000@ <sip:1000@PUBLIC_IP_USER1:5064>
PUBLIC_IP_USER1:5064>
[truncated] Proxy-Authorization: Digest username="1000",
realm="KAMAILIO_PUBLIC_IP", nonce="UBfL8lAXysb5tJCs80ZnthyPl9IzmRZk",
uri="sip:1001@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