[Serusers] Bug with SER 9.0.2?

[Klaus Darilion]

Hi Alberto!

The BYE message from the client has no 'rport' paramter in its Via: 
header. Thus, ser sends the response to the IP:port in the via header. 
As there is no port, ser assumes port 5060.

You can manually add the rport paramter by using force_rport(). Then, 
ser will add the port from which it received the message (61133) and 
will use this prot for responses.

regards,
klaus

Alberto Cruz wrote:

> Does anybody know if the following behavior is a bug?
> 
> UA behind NAT -> SER with MEDIAPROXY -> GATEWAY
> 
> U 2005/06/25 22:50:59.020747 200.94.75.6:5060 -> *200.67.33.247:61133*
> SIP/2.0 183 Session Progress.
> Via: SIP/2.0/UDP 
> 172.31.253.127:5060;rport=61133;received=200.67.33.247;branch=z9hG4bK-bb14d3a0.
> From: 8183651723 
> <sip:8183651723 at sipsrv.conecta-te.com>;tag=7eee899c25104cbo0.
> To: <sip:018183324166 at sipsrv.conecta-te.com>;tag=2EC3E224-C59.
> Date: Sun, 26 Jun 2005 03:51:20 GMT.
> Call-ID: 994132b0-ecde4ec7 at 172.31.253.127.
> Server: Cisco-SIPGateway/IOS-12.x.
> CSeq: 101 INVITE.
> 
> U 2005/06/25 22:51:06.346082 200.94.75.1:5060 -> 200.94.75.6:5060
> SIP/2.0 200 OK.
> Via: SIP/2.0/UDP 200.94.75.6;branch=z9hG4bK7176.047de506.0,SIP/2.0/UDP 
> 172.31.253.127:5060;rport=61133;received=200.67.33.247;branch=z9h
> G4bK-bb14d3a0.
> From: 8183651723 
> <sip:8183651723 at sipsrv.conecta-te.com>;tag=7eee899c25104cbo0.
> To: <sip:018183324166 at sipsrv.conecta-te.com>;tag=2EC3E224-C59.
> Date: Sun, 26 Jun 2005 03:51:20 GMT.
> Call-ID: 994132b0-ecde4ec7 at 172.31.253.127.
> Server: Cisco-SIPGateway/IOS-12.x.
> CSeq: 101 INVITE.
> 
> U 2005/06/25 22:51:06.349202 200.94.75.6:5060 -> *200.67.33.247:61133
> *SIP/2.0 200 OK.
> Via: SIP/2.0/UDP 
> 172.31.253.127:5060;rport=61133;received=200.67.33.247;branch=z9hG4bK-bb14d3a0.
> From: 8183651723 
> <sip:8183651723 at sipsrv.conecta-te.com>;tag=7eee899c25104cbo0.
> To: <sip:018183324166 at sipsrv.conecta-te.com>;tag=2EC3E224-C59.
> Date: Sun, 26 Jun 2005 03:51:20 GMT.
> Call-ID: 994132b0-ecde4ec7 at 172.31.253.127.
> Server: Cisco-SIPGateway/IOS-12.x.
> CSeq: 101 INVITE.
> 
> U 2005/06/25 22:51:06.463073 *200.67.33.247:61133* -> 200.94.75.6:5060
> ACK sip:018183324166 at 200.94.75.1:5060 SIP/2.0.
> Via: SIP/2.0/UDP 172.31.253.127:5060;branch=z9hG4bK-2cfda76b.
> From: 8183651723 
> <sip:8183651723 at sipsrv.conecta-te.com>;tag=7eee899c25104cbo0.
> To: <sip:018183324166 at sipsrv.conecta-te.com>;tag=2EC3E224-C59.
> Call-ID: 994132b0-ecde4ec7 at 172.31.253.127.
> CSeq: 101 ACK.
> 
> U 2005/06/25 22:51:06.466144 200.94.75.6:5060 -> 200.94.75.1:5060
> ACK sip:018183324166 at 200.94.75.1:5060 SIP/2.0.
> Record-Route: <sip:200.94.75.6;ftag=7eee899c25104cbo0;lr=on>.
> Via: SIP/2.0/UDP 200.94.75.6;branch=0.
> Via: SIP/2.0/UDP 
> 172.31.253.127:5060;received=200.67.33.247;branch=z9hG4bK-2cfda76b.
> From: 8183651723 
> <sip:8183651723 at sipsrv.conecta-te.com>;tag=7eee899c25104cbo0.
> To: <sip:018183324166 at sipsrv.conecta-te.com>;tag=2EC3E224-C59.
> Call-ID: 994132b0-ecde4ec7 at 172.31.253.127.
> CSeq: 101 ACK.
> 
> U 2005/06/25 22:52:46.932753 *200.67.33.247:61133* -> 200.94.75.6:5060
> BYE sip:018183324166 at 200.94.75.1:5060 SIP/2.0.
> Via: SIP/2.0/UDP 172.31.253.127:5060;branch=z9hG4bK-fb84955e.
> From: 8183651723 
> <sip:8183651723 at sipsrv.conecta-te.com>;tag=7eee899c25104cbo0.
> To: <sip:018183324166 at sipsrv.conecta-te.com>;tag=2EC3E224-C59.
> Call-ID: 994132b0-ecde4ec7 at 172.31.253.127.
> CSeq: 102 BYE.
> 
> U 2005/06/25 22:52:46.936356 200.94.75.6:5060 -> 200.94.75.1:5060
> BYE sip:018183324166 at 200.94.75.1:5060 SIP/2.0.
> Record-Route: <sip:200.94.75.6;ftag=7eee899c25104cbo0;lr=on>.
> Via: SIP/2.0/UDP 200.94.75.6;branch=z9hG4bK4176.978b7dd1.0.
> Via: SIP/2.0/UDP 
> 172.31.253.127:5060;received=200.67.33.247;branch=z9hG4bK-fb84955e.
> From: 8183651723 
> <sip:8183651723 at sipsrv.conecta-te.com>;tag=7eee899c25104cbo0.
> To: <sip:018183324166 at sipsrv.conecta-te.com>;tag=2EC3E224-C59.
> Call-ID: 994132b0-ecde4ec7 at 172.31.253.127.
> CSeq: 102 BYE.
> 
> U 2005/06/25 22:52:46.943252 200.94.75.1:5060 -> 200.94.75.6:5060
> SIP/2.0 200 OK.
> Via: SIP/2.0/UDP 200.94.75.6;branch=z9hG4bK4176.978b7dd1.0,SIP/2.0/UDP 
> 172.31.253.127:5060;received=200.67.33.247;branch=z9hG4bK-fb84955
> e.
> From: 8183651723 
> <sip:8183651723 at sipsrv.conecta-te.com>;tag=7eee899c25104cbo0.
> To: <sip:018183324166 at sipsrv.conecta-te.com>;tag=2EC3E224-C59.
> Date: Sun, 26 Jun 2005 03:53:13 GMT.
> Call-ID: 994132b0-ecde4ec7 at 172.31.253.127.
> 
> U 2005/06/25 22:52:46.944910 200.94.75.6:5060 -> *200.67.33.247:5060 
> !!!! The UDP PORT was changed !!!!*
> SIP/2.0 200 OK.
> Via: SIP/2.0/UDP 
> 172.31.253.127:5060;received=200.67.33.247;branch=z9hG4bK-fb84955e.
> From: 8183651723 
> <sip:8183651723 at sipsrv.conecta-te.com>;tag=7eee899c25104cbo0.
> To: <sip:018183324166 at sipsrv.conecta-te.com>;tag=2EC3E224-C59.
> Date: Sun, 26 Jun 2005 03:53:13 GMT.
> Call-ID: 994132b0-ecde4ec7 at 172.31.253.127.
> 
> *The UA retries the BYE again because it didn't receive the 200 OK with 
> the right UDP PORT*
> 
> U 2005/06/25 22:52:47.429710 *200.67.33.247:61133* -> 200.94.75.6:5060
> BYE sip:018183324166 at 200.94.75.1:5060 SIP/2.0.
> Via: SIP/2.0/UDP 172.31.253.127:5060;branch=z9hG4bK-fb84955e.
> From: 8183651723 
> <sip:8183651723 at sipsrv.conecta-te.com>;tag=7eee899c25104cbo0.
> To: <sip:018183324166 at sipsrv.conecta-te.com>;tag=2EC3E224-C59.
> Call-ID: 994132b0-ecde4ec7 at 172.31.253.127.
> CSeq: 102 BYE.
> 
> I'm using
> version: ser 0.9.2 (i386/linux)
> flags: STATS: Off, USE_IPV6, USE_TCP, DISABLE_NAGLE, USE_MCAST, 
> DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, FAST_LOCK-ADAPTIVE_WAIT
> ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, 
> MAX_URI_SIZE 1024, BUF_SIZE 65535
> @(#) $Id: main.c,v 1.197 2004/12/03 19:09:31 andrei Exp $
> main.c compiled on 10:21:27 Jun 11 2005 with gcc 3.3
> 
> and MEDIAPROXY 1.3.1
> 
> I have the ser.cfg for PSTN from ONSIP.org
> 
> Regards
> 
> Alberto Cruz
> 
> 
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> 
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