>From your SIP message

U nat.ip:2370 -> opensips.ip:5060 REGISTER sip:opensips.ip
SIP/2.0..Via: SIP/2.0/UDP nat.ip:8427;branch=z9hG4bK79682dfb..
From: <sip:[email protected];user=phone>..To:
<sip:[email protected];user=phone>..Call-ID:
[email protected]: Mon, 06 Dec 2010
21:28:11 GMT..CSeq: 200 REGISTER..User-Agent
 : CSCO/7..Contact: <sip:[email protected]:8427>..Content-Length:
0..Expires: 45....

In the VIA header I believe your phone is saying "Talk to me over
nat.ip:8427"

You might want to set up logging on your PIX/ASA firewall to see whats
getting blocked, but from the way you've explained the issue it doesn't
sound like an OpenSIPS issue.  Sounds like a firewall issue or Cisco phone
issue.

On Tue, Dec 7, 2010 at 10:22 AM, James Lamanna <[email protected]> wrote:

> Hi Bogdan,
> I guess I'm confused as to why you say its being transmitted back to
> the same IP:Port:
>
> U nat.ip:2370 -> opensips.ip:5060
> U opensips.ip:5060 -> nat.ip:8427
>
> Shouldn't it be going back to port 2370? And not 8427?
>
> -- James
>
> On Tue, Dec 7, 2010 at 2:43 AM, Bogdan-Andrei Iancu
> <[email protected]> wrote:
> > Hi James,
> >
> > From proxy point of view, everything looks ok - I see the reply sent back
> to
> > the exact IP:port where the request came from....So the reply should make
> it
> > through the NAT...But it seams it doesn't as the phone keeps
> retransmitting
> > the REGISTER..
> >
> > Again, from NAT pov, opensips is doing the right stuff (doing symmetric
> > signalling) - there is nothing more you can do here for opensips..Maybe
> it
> > is something specific to the NAT device - any possibility to debug/trace
> on
> > it ?
> >
> > Regards,
> > Bogdan
> >
> > James Lamanna wrote:
> >>
> >> Hi,
> >> I was wondering if anyone had any experience getting a Cisco 7960
> >> phone to register to opensips when the phone is behind a PIX firewall.
> >> I'm having a hell of a time getting it to register.
> >> I see these messages:
> >>
> >> U nat.ip:2260 -> opensips.ip:5060
> >>  REGISTER sip:opensips.ip SIP/2.0..Via: SIP/2.0/UDP
> >> 10.20.33.22:5060;branch=z9hG4bK48039e3a..From: <
> >>  sip:[email protected];user=phone>..To:
> >> <sip:[email protected];user=phone>..Call-ID: 0003
> >>  [email protected]: Mon, 06 Dec 2010
> >> 18:10:49 GMT..CSeq: 107 REGISTER
> >>  ..User-Agent: CSCO/7..Contact:
> >> <sip:[email protected]:5060>..Content-Length: 0..Expires: 45....
> >> #
> >> U opensips.ip:5060 -> nat.ip:2260
> >>  SIP/2.0 401 Unauthorized..Via: SIP/2.0/UDP
> >> 10.20.33.22:5060;branch=z9hG4bK48039e3a;rport=2260;receiv
> >>  ed=208.90.184.123..From: <sip:[email protected];user=phone>..To:
> >> <sip:[email protected];
> >>  user=phone>;tag=c5cd5e6c2a1d4c975e04c2ff1b643904.5bf3..Call-ID:
> >> 00036be7-b0aa0007-46220771-115f4fcc@
> >>  10.20.33.22..CSeq: 107 REGISTER..WWW-Authenticate: Digest
> >> realm="asterisk", nonce="4cfd27fe0000780d7
> >>  1826527370e7c8b97f663425df75489"..Server: OpenSIPS (1.6.3-notls
> >> (x86_64/linux))..Content-Length: 0..
> >>  ..
> >> #
> >> U nat.ip:2260 -> opensips.ip:5060
> >>  REGISTER sip:opensips.ip SIP/2.0..Via: SIP/2.0/UDP
> >> 10.20.33.22:5060;branch=z9hG4bK48039e3a..From: <
> >>  sip:[email protected];user=phone>..To:
> >> <sip:[email protected];user=phone>..Call-ID: 0003
> >>  [email protected]: Mon, 06 Dec 2010
> >> 18:10:49 GMT..CSeq: 107 REGISTER
> >>  ..User-Agent: CSCO/7..Contact:
> >> <sip:[email protected]:5060>..Content-Length: 0..Expires: 45....
> >> #
> >> U opensips.ip:5060 -> nat.ip:2260
> >>  SIP/2.0 401 Unauthorized..Via: SIP/2.0/UDP
> >> 10.20.33.22:5060;branch=z9hG4bK48039e3a;rport=2260;receiv
> >>  ed=208.90.184.123..From: <sip:[email protected];user=phone>..To:
> >> <sip:[email protected];
> >>  user=phone>;tag=c5cd5e6c2a1d4c975e04c2ff1b643904.5bf3..Call-ID:
> >> 00036be7-b0aa0007-46220771-115f4fcc@
> >>  10.20.33.22..CSeq: 107 REGISTER..WWW-Authenticate: Digest
> >> realm="asterisk", nonce="4cfd28000000780e5
> >>  c3381d838a044479357aa6c660df432"..Server: OpenSIPS (1.6.3-notls
> >> (x86_64/linux))..Content-Length: 0..
> >>
> >> This suggests the 401 response is not making it back to the
> >> phone....but I'm not sure why the PIX would be blocking it.
> >> All sip fixup is off.
> >>
> >> Any configuration suggestions would be much appreciated.
> >> The phone has:
> >> nat_enable: 0
> >> nat_received_processing: 0
> >>
> >> That was the only way I could get opensips to send the responses back
> >> to the correct port.
> >>
> >> Thanks.
> >>
> >> -- James
> >>
> >> _______________________________________________
> >> Users mailing list
> >> [email protected]
> >> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
> >>
> >>
> >
> >
> > --
> > Bogdan-Andrei Iancu
> > OpenSIPS Bootcamp
> > 15 - 19 November 2010, Edison, New Jersey, USA
> > www.voice-system.ro
> >
> >
> > _______________________________________________
> > Users mailing list
> > [email protected]
> > http://lists.opensips.org/cgi-bin/mailman/listinfo/users
> >
>
> _______________________________________________
> Users mailing list
> [email protected]
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>



-- 
--
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Duane
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