[OpenSIPS-Users] B2B and "404 Not here"

Tue Jan 18 14:52:09 CET 2011

Hi Bogdan.

I fixed the B2B loop, but openSIPS still replies 404.

Please see on fragments on my SIP trace:

SIP flow: UA1 (192.168.0.1) -> openSIPS(B2B) (192.168.0.10) -> AudioCodes
mediant (192.168.0.20) -> UA2 (somewhere)

1. UA1 -> openSIPS : INVITE
Via: SIP/2.0/UDP 192.168.0.1:5060;branch=z9hG4bK-5d365510
From: "100" <sip:100 at mydomain.com>;tag=c8163c00327d8790o0
Call-ID: 1e2e8c0-6deac1d0 at 92.255.16.121

2. openSIPS -> openSIPS B2B : INVITE
Via: SIP/2.0/UDP 192.168.0.10;branch=z9hG4bKd30e.9c8687a6.0
From: <sip:100 at mydomain.com>;tag=c53818ff531edab4595cc700e8d1209d
Call-ID: B2B.154.4874498

3. openSIPS B2B -> Mediant : INVITE
Record-Route:
<sip:192.168.0.10;lr=on;ftag=c53818ff531edab4595cc700e8d1209d;did=c61.b305b6
97>
Via: SIP/2.0/UDP 192.168.0.10;branch=z9hG4bKd30e.ac8687a6.0
Via: SIP/2.0/UDP 192.168.0.10;branch=z9hG4bKd30e.9c8687a6.0
From: <sip:100 at mydomain.com>;tag=c53818ff531edab4595cc700e8d1209d
Call-ID: B2B.154.4874498

After negotiation:

4. Mediant -> openSIPS B2B : OK
Via: SIP/2.0/UDP 192.168.0.10;branch=z9hG4bKd30e.ac8687a6.0
Via: SIP/2.0/UDP 192.168.0.10;branch=z9hG4bKd30e.9c8687a6.0
From: <sip:100 at mydomain.com>;tag=c53818ff531edab4595cc700e8d1209d
To: sip:xxx at mydomain.com;tag=1c904270116
Call-ID: B2B.154.4874498

5. openSIPS B2B -> openSIPS : OK
Via: SIP/2.0/UDP 192.168.0.10;branch=z9hG4bKd30e.9c8687a6.0
From: <sip:100 at mydomain.com>;tag=c53818ff531edab4595cc700e8d1209d
To: sip:xxx at mydomain.com;tag=1c904270116
Call-ID: B2B.154.4874498

And BYE:

5. Medaint -> openSIPS B2B : BYE
Request-Line: BYE sip:192.168.0.10:5060;transport=udp SIP/2.0
Via: SIP/2.0/UDP 192.168.0.20;branch=z9hG4bKac1061035722
From: sip:xxx at mydomain.com;tag=1c904270116
To: <sip:100 at mydomain.com>;tag=c53818ff531edab4595cc700e8d1209d
Call-ID: B2B.154.4874498

6. openSIPS B2B -> openSIPS : BYE
Request-Line: BYE
sip:192.168.0.1;lr=on;ftag=c53818ff531edab4595cc700e8d1209d;did=c61.b305b697
SIP/2.0
Via: SIP/2.0/UDP 192.168.0.10;branch=z9hG4bK3a1c.42ce8c57.0
Via: SIP/2.0/UDP 192.168.0.20;branch=z9hG4bKac1061035722
From: sip:xxx at mydomain.com;tag=1c904270116
To: <sip:100 at mydomain.com>;tag=c53818ff531edab4595cc700e8d1209d
Call-ID: B2B.154.4874498

And, openSIPS replies to B2B '404'

I see 2 potential moments:
1) I'm changing 'From' field on stage 2. 
2) On stage 3 a field 'Contact' is "Contact:
<sip:192.168.0.10:5060;transport=udp>" althought I defined
"modparam("b2b_logic", "server_address", "sip:sa at 192.168.0.10")"

WBR, Anton Zagorskiy
VoIP Developer, Oyster Telecom
Phone.: +7 812 601-0666
Fax: +7 812 601-0593
a.zagorskiy at oyster-telecom.ru
www.oyster-telecom.ru

> -----Original Message-----
> From: users-bounces at lists.opensips.org [mailto:users-
> bounces at lists.opensips.org] On Behalf Of Bogdan-Andrei Iancu
> Sent: Tuesday, January 18, 2011 3:57 PM
> To: OpenSIPS users mailling list
> Subject: Re: [OpenSIPS-Users] B2B and "404 Not here"
> 
> Hi Anton,
> 
> The ERROR line you have here are not essential - they simply say that
> the warning (optional) hdr was not added. Not an actual error.
> 
> Can you check doing a capture at net level who is generating the 404
> reply? from opensips script, for final callee ?
> 
> Regards,
> Bogdan
> 
> 
> Anton Zagorskiy wrote:
> > Hi.
> >
> > While using B2B when callee ends an established call openSIPS replies
> '404
> > Not Here' and goes to the infinitive loop..
> >
> > Here is a part of a log:
> > Jan 17 19:01:25 softswitch [softswitch][9329]: *** route ->  M=BYE
> > Jan 17 19:01:25 softswitch [softswitch][9329]:
> DBG:maxfwd:is_maxfwd_present:
> > value = 32
> > Jan 17 19:01:25 softswitch [softswitch][9329]:
> DBG:maxfwd:is_maxfwd_lt:
> > value = 31
> > Jan 17 19:01:25 softswitch [softswitch][9329]: DBG:uri:has_totag:
> totag
> > found
> > Jan 17 19:01:25 softswitch [softswitch][9329]:
> DBG:core:parse_headers:
> > flags=200
> > Jan 17 19:01:25 softswitch [softswitch][9329]:
> DBG:rr:find_first_route: No
> > Route headers found
> > Jan 17 19:01:25 softswitch [softswitch][9329]: DBG:rr:loose_route:
> There is
> > no Route HF
> > Jan 17 19:01:25 softswitch [softswitch][9329]:
> DBG:core:parse_headers:
> > flags=ffffffffffffffff
> > Jan 17 19:01:25 softswitch [softswitch][9329]:
> DBG:core:check_ip_address:
> > params 192.168.0.2, 192.168.0.2, 0
> > Jan 17 19:01:25 softswitch [softswitch][9329]:
> ERROR:core:warning_builder:
> > buffer size exceeded
> > *** Jan 17 19:01:25 softswitch [softswitch][9329]:
> > WARNING:core:build_res_buf_from_sip_req: warning skipped -- too big
> > Jan 17 19:01:25 softswitch [softswitch][9329]:
> DBG:sl:run_sl_callbacks:
> > callback id 0 entered
> > Jan 17 19:01:25 softswitch [softswitch][9329]:
> > DBG:siptrace:trace_sl_onreply_out: trace off...
> > Jan 17 19:01:25 softswitch [softswitch][9330]: DBG:core:parse_msg:
> SIP Reply
> > (status):
> > Jan 17 19:01:25 softswitch [softswitch][9329]:
> DBG:core:destroy_avp_list:
> > destroying list (nil)
> > Jan 17 19:01:25 softswitch [softswitch][9329]: DBG:core:receive_msg:
> > cleaning up
> > Jan 17 19:01:25 softswitch [softswitch][9330]: DBG:core:parse_msg:
> version:
> > <SIP/2.0>
> > Jan 17 19:01:25 softswitch [softswitch][9330]: DBG:core:parse_msg:
> status:
> > <404>
> > Jan 17 19:01:25 softswitch [softswitch][9330]: DBG:core:parse_msg:
> reason:
> > <Not here>
> > Jan 17 19:01:25 softswitch [softswitch][9330]:
> DBG:core:parse_headers:
> > flags=2
> >
> >
> > While debugging at line marked *** I see that warning_len is 0
> >
> >
> > Any suggestions?
> >
> >
> >
> > WBR, Anton Zagorskiy
> > VoIP Developer, Oyster Telecom
> > Phone.: +7 812 601-0666
> > Fax: +7 812 601-0593
> > a.zagorskiy at oyster-telecom.ru
> > www.oyster-telecom.ru
> >
> >
> >
> >
> >
> > _______________________________________________
> > Users mailing list
> > Users at lists.opensips.org
> > http://lists.opensips.org/cgi-bin/mailman/listinfo/users
> >
> >
> 
> 
> --
> Bogdan-Andrei Iancu
> OpenSIPS Event - expo, conf, social, bootcamp
> 2 - 4 February 2011, ITExpo, Miami,  USA
> OpenSIPS solutions and "know-how"
> 
> 
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