Hi!
The client which uses TCP is broken. The ACK and BYE are in-dialog
requests and MUST contain the callees Contact: URI as request URI. That
means:
ACK sip:[EMAIL PROTECTED]:5070 SIP/2.0
instead of
ACK sip:[EMAIL PROTECTED]:5060 SIP/2.0
regards
klaus
Russ Daigle wrote:
I have a scenario where user Alice registered with OpenSER with UDP port
5070. Then, I have user Bob sending an invite to Alice via the OpenSER
using TCP. Hence, OpenSER is bridging my TCP SIP requests to UDP (and
vice versa for the responses).
Here is the sequence:
Alice ----- TCP Invite -----> OpenSER ---------- UDP Invite ------>
Alice
Alice responds back with 180 ringing, then 200 Ok.
Upon getting the 200 OK, Bob sends an ACK (to complete the INVITE),
followed by an Immediate BYE.
THE TROUBLE IS...... the ACK and the BYE that Bob sends are dropped by
OpenSER, and never forwarded onto Alice!!!! I see nothing wrong with
the messages. WHat is happening?
sip:~ russdaigle$ sudo tcpdump -i en0 -A -q -s 2000 port 5060
Password:
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on en0, link-type EN10MB (Ethernet), capture size 2000 bytes
The following shows an sip-invite-bye from mutator using TCP to mjsip (via
OPENSER). Everything after the ACK is dropped and not sent on.
Then, is a similar but UDP exchange. In that case, we get a 404 not found
in response to the BYE!!!
01:17:59.553909 IP 10.10.2.6.50135 > 10.10.1.234.sip: tcp 588
INVITE sip:[EMAIL PROTECTED]:5060 SIP/2.0
Via: SIP/2.0/TCP 10.10.2.6:50135;branch=z9hG4bK85478043
From: Bob <sip:[EMAIL PROTECTED]>;tag=fromhackblah
To: Alice <sip:[EMAIL PROTECTED]:5060>
CSeq: 1 INVITE
Call-ID: [EMAIL PROTECTED]
Contact: <sip:[EMAIL PROTECTED]>;transport=TCP
Max-Forwards: 70
Content-Type: application/sdp
Content-Length: 195
v=0
o=- 817933771 817933775 IN IP4 10.10.2.6
s=darkness
c=IN IP4 10.10.2.6
t=0 0
m=audio 5000 RTP/AVP 0 4 97
a=rtpmap:0 PCMU/8000
a=rtpmap:4 G723/8000/1
a=rtpmap:97 telephone-event/8000
01:17:59.554929 IP 10.10.1.234.sip > 10.10.2.6.50135: tcp 536
SIP/2.0 100 trying -- your call is important to us
Via: SIP/2.0/TCP 10.10.2.6:50135;branch=z9hG4bK85478043
From: Bob <sip:[EMAIL PROTECTED]>;tag=fromhackblah
To: Alice <sip:[EMAIL PROTECTED]:5060>
CSeq: 1 INVITE
Call-ID: [EMAIL PROTECTED]
Server: OpenSer (1.1.0-notls (i386/darwin))
Content-Length: 0
Warning: 392 10.10.1.234:5060 "Noisy feedback tells: pid=11962
req_src_ip=10.10.2.6 req_src_port=50135
in_uri=sip:[EMAIL PROTECTED]:5060 out_uri=sip:[EMAIL PROTECTED]:5070
via_cnt==1"
01:17:59.555035 IP 10.10.1.234.sip > 10.10.2.6.5070: UDP, length 814
INVITE sip:[EMAIL PROTECTED]:5070 SIP/2.0
Record-Route: <sip:10.10.1.234;r2=on;lr=on;ftag=fromhackblah>
Record-Route: <sip:10.10.1.234;transport=tcp;r2=on;lr=on;ftag=fromhackblah>
Via: SIP/2.0/UDP 10.10.1.234;branch=z9hG4bK9316.e5ab8ce2.0;i=b1
Via: SIP/2.0/TCP 10.10.2.6:50135;branch=z9hG4bK85478043
From: Bob <sip:[EMAIL PROTECTED]>;tag=fromhackblah
To: Alice <sip:[EMAIL PROTECTED]:5060>
CSeq: 1 INVITE
Call-ID: [EMAIL PROTECTED]
Contact: <sip:[EMAIL PROTECTED]>;transport=TCP
Max-Forwards: 69
Content-Type: application/sdp
Content-Length: 195
P-hint: usrloc applied
v=0
o=- 817933771 817933775 IN IP4 10.10.2.6
s=darkness
c=IN IP4 10.10.2.6
t=0 0
m=audio 5000 RTP/AVP 0 4 97
a=rtpmap:0 PCMU/8000
a=rtpmap:4 G723/8000/1
a=rtpmap:97 telephone-event/8000
01:17:59.667962 IP 10.10.2.6.5070 > 10.10.1.234.sip: UDP, length 364
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 10.10.1.234;branch=z9hG4bK9316.e5ab8ce2.0;i=b1
Via: SIP/2.0/TCP 10.10.2.6:50135;branch=z9hG4bK85478043
To: Alice <sip:[EMAIL PROTECTED]:5060>
From: Bob <sip:[EMAIL PROTECTED]>;tag=fromhackblah
Call-ID: [EMAIL PROTECTED]
CSeq: 1 INVITE
Server: mjsip stack 1.6
Content-Length: 0
01:17:59.699680 IP 10.10.2.6.5070 > 10.10.1.234.sip: UDP, length 505
SIP/2.0 180 Ringing
Via: SIP/2.0/UDP 10.10.1.234;branch=z9hG4bK9316.e5ab8ce2.0;i=b1
Via: SIP/2.0/TCP 10.10.2.6:50135;branch=z9hG4bK85478043
Record-Route: <sip:10.10.1.234;r2=on;lr=on;ftag=fromhackblah>
Record-Route: <sip:10.10.1.234;transport=tcp;r2=on;lr=on;ftag=fromhackblah>
To: Alice <sip:[EMAIL PROTECTED]:5060>
From: Bob <sip:[EMAIL PROTECTED]>;tag=fromhackblah
Call-ID: [EMAIL PROTECTED]
CSeq: 1 INVITE
Server: mjsip stack 1.6
Content-Length: 0
01:17:59.699683 IP 10.10.2.6.5070 > 10.10.1.234.sip: UDP, length 728
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.10.1.234;branch=z9hG4bK9316.e5ab8ce2.0;i=b1
Via: SIP/2.0/TCP 10.10.2.6:50135;branch=z9hG4bK85478043
Record-Route: <sip:10.10.1.234;r2=on;lr=on;ftag=fromhackblah>
Record-Route: <sip:10.10.1.234;transport=tcp;r2=on;lr=on;ftag=fromhackblah>
To: Alice <sip:[EMAIL PROTECTED]:5060>;tag=7c452a3254b2e183
From: Bob <sip:[EMAIL PROTECTED]>;tag=fromhackblah
Call-ID: [EMAIL PROTECTED]
CSeq: 1 INVITE
Contact: <sip:[EMAIL PROTECTED]:5070>
Server: mjsip stack 1.6
Content-Length: 135
Content-Type: application/sdp
v=0
o=- 817933771 817933775 IN IP4 10.10.2.6
s=darkness
c=IN IP4 192.168.0.3
t=0 0
m=audio 21000 RTP/AVP 0
a=rtpmap:0 PCMU/8000
01:17:59.700273 IP 10.10.1.234.sip > 10.10.2.6.50135: tcp 440
SIP/2.0 180 Ringing
Via: SIP/2.0/TCP 10.10.2.6:50135;branch=z9hG4bK85478043
Record-Route: <sip:10.10.1.234;r2=on;lr=on;ftag=fromhackblah>
Record-Route: <sip:10.10.1.234;transport=tcp;r2=on;lr=on;ftag=fromhackblah>
To: Alice <sip:[EMAIL PROTECTED]:5060>
From: Bob <sip:[EMAIL PROTECTED]>;tag=fromhackblah
Call-ID: [EMAIL PROTECTED]
CSeq: 1 INVITE
Server: mjsip stack 1.6
Content-Length: 0
01:17:59.700299 IP 10.10.1.234.sip > 10.10.2.6.50135: tcp 663
SIP/2.0 200 OK
Via: SIP/2.0/TCP 10.10.2.6:50135;branch=z9hG4bK85478043
Record-Route: <sip:10.10.1.234;r2=on;lr=on;ftag=fromhackblah>
Record-Route: <sip:10.10.1.234;transport=tcp;r2=on;lr=on;ftag=fromhackblah>
To: Alice <sip:[EMAIL PROTECTED]:5060>;tag=7c452a3254b2e183
From: Bob <sip:[EMAIL PROTECTED]>;tag=fromhackblah
Call-ID: [EMAIL PROTECTED]
CSeq: 1 INVITE
Contact: <sip:[EMAIL PROTECTED]:5070>
Server: mjsip stack 1.6
Content-Length: 135
Content-Type: application/sdp
v=0
o=- 817933771 817933775 IN IP4 10.10.2.6
s=darkness
c=IN IP4 192.168.0.3
t=0 0
m=audio 21000 RTP/AVP 0
a=rtpmap:0 PCMU/8000
01:17:59.804566 IP 10.10.2.6.50135 > 10.10.1.234.sip: tcp 435
ACK sip:[EMAIL PROTECTED]:5060 SIP/2.0
Route: <sip:10.10.1.234;r2=on;lr=on;ftag=fromhackblah>
Route: <sip:10.10.1.234;transport=tcp;r2=on;lr=on;ftag=fromhackblah>
Via: SIP/2.0/TCP 10.10.2.6:50135;branch=z9hG4bK59972
From: Bob <sip:[EMAIL PROTECTED]>;tag=fromhackblah
To: Alice <sip:[EMAIL PROTECTED]:5060>;tag=7c452a3254b2e183
CSeq: 1 ACK
Call-ID: [EMAIL PROTECTED]
Max-Forwards: 70
01:17:59.839493 IP 10.10.2.6.50135 > 10.10.1.234.sip: tcp 435
BYE sip:[EMAIL PROTECTED]:5060 SIP/2.0
Route: <sip:10.10.1.234;r2=on;lr=on;ftag=fromhackblah>
Route: <sip:10.10.1.234;transport=tcp;r2=on;lr=on;ftag=fromhackblah>
Via: SIP/2.0/TCP 10.10.2.6:50135;branch=z9hG4bK68444
From: Bob <sip:[EMAIL PROTECTED]>;tag=fromhackblah
To: Alice <sip:[EMAIL PROTECTED]:5060>;tag=7c452a3254b2e183
CSeq: 2 BYE
Call-ID: [EMAIL PROTECTED]
Max-Forwards: 70
01:18:00.199306 IP 10.10.2.6.5070 > 10.10.1.234.sip: UDP, length 728
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.10.1.234;branch=z9hG4bK9316.e5ab8ce2.0;i=b1
Via: SIP/2.0/TCP 10.10.2.6:50135;branch=z9hG4bK85478043
Record-Route: <sip:10.10.1.234;r2=on;lr=on;ftag=fromhackblah>
Record-Route: <sip:10.10.1.234;transport=tcp;r2=on;lr=on;ftag=fromhackblah>
To: Alice <sip:[EMAIL PROTECTED]:5060>;tag=7c452a3254b2e183
From: Bob <sip:[EMAIL PROTECTED]>;tag=fromhackblah
Call-ID: [EMAIL PROTECTED]
CSeq: 1 INVITE
Contact: <sip:[EMAIL PROTECTED]:5070>
Server: mjsip stack 1.6
Content-Length: 135
Content-Type: application/sdp
v=0
o=- 817933771 817933775 IN IP4 10.10.2.6
s=darkness
c=IN IP4 192.168.0.3
t=0 0
m=audio 21000 RTP/AVP 0
a=rtpmap:0 PCMU/8000
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--
Klaus Darilion
nic.at
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