[OpenSIPS-Users] ACK did not Receive on Proxy and get in loop
Bogdan-Andrei Iancu
bogdan at opensips.org
Wed Sep 9 11:58:36 CEST 2015
Hi Hamid,
If you use PATH support on the proxy, this should translate into UAS
adding an extra Route header when routing calls back the UAS.
Nevertheless, the PATH does not interfere and change anything when comes
to the sequential requests.
Could you post the 200 OK between UAS-proxy and proxy-UAC ?
Best regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com
On 07.09.2015 14:23, Hamid Hashmi wrote:
> Bogdan,
>
> I am using path module on Both servers (Proxy - add_path_receive() and
> UAS - use_received 1 ). UAS change the Contact header of 200 OK with
> the IP given in field 'path' in table 'location'. But when I make a
> call by bypassing proxy, UAS did not change the contact header. What
> am I doing wrong in using module Path ?
>
> Regards
> Hamid R. Hashmi
>
> ------------------------------------------------------------------------
> Date: Mon, 7 Sep 2015 13:16:35 +0300
> From: bogdan at opensips.org
> To: users at lists.opensips.org; hamid2kviii at hotmail.com
> Subject: Re: [OpenSIPS-Users] ACK did not Receive on Proxy and get in loop
>
> Hi Hamid,
>
> There is something wrong with the contact in the 200 OK - as you see,
> the 200 OK reply from proxy to Alice contains in the Contact header
> the IP of the the proxy, while it should contain the IP address of BOB
> (the issuer of that reply).
>
> Because of that bogus Contact header, the whole in-dialog routing (for
> the ACK) gets broken.
>
> Best Regards,
> Bogdan-Andrei Iancu
> OpenSIPS Founder and Developer
> http://www.opensips-solutions.com
> On 03.09.2015 09:29, Hamid Hashmi wrote:
>
> Dear Bogdan and Sammy
>
> 200 OK received to Alice is as follows
>
> SIP/2.0 200 Ok
> Via: SIP/2.0/UDP
> 203.215.176.22:43912;received=203.215.176.22;branch=z9hG4bK-d87543-769673078-1--d87543-;rport=48008
> From: 923071000201<sip:923071000201 at sip.realm.com>
> <mailto:sip:923071000201 at sip.realm.com>;tag=450fb754
> To: <sip:00923071000202 at sip.realm.com>
> <mailto:sip:00923071000202 at sip.realm.com>;tag=b1UXiUx
> Call-ID: ac263a229e15d211
> CSeq: 3 INVITE
> User-Agent: LinphoneAndroid/2.5.0 (belle-sip/1.4.1)
> Supported: outbound
> Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE,
> SUBSCRIBE, INFO, UPDATE
> Contact: <sip:923071000202 at proxy.com:1234>
> <mailto:sip:923071000202 at proxy.com:1234>;+sip.instance="<urn:uuid:05d62157-0f77-46f8-9dee-5c37a646cbc6>"
> Content-Type: application/sdp
> Content-Length: 181
>
> *Record-route: <sip:proxy.com:1234;lr>*
> *Record-route:
> <sip:00923071000202 at sipuas.com:1234;lr;ftag=450fb754;did=1cd.ad2b02c7>
> <mailto:sip:00923071000202 at sipuas.com:1234;lr;ftag=450fb754;did=1cd.ad2b02c7>*
>
> While Alice send ACK as Follows
>
> ACK sip:923071000202 at proxy.com:1234
> <mailto:sip:923071000202 at proxy.com:1234> SIP/2.0
> To: <sip:00923071000202 at sip.realm.com>
> <mailto:sip:00923071000202 at sip.realm.com>;tag=b1UXiUx
> From: 923071000201<sip:923071000201 at sip.realm.com>
> <mailto:sip:923071000201 at sip.realm.com>;tag=450fb754
> Via: SIP/2.0/UDP
> 203.215.176.22:43912;branch=z9hG4bK-d87543-546180712-1--d87543-;rport
> Call-ID: ac263a229e15d211
> CSeq: 3 ACK
>
> *Route:
> <sip:00923071000202 at sipuas.com:1234;lr;ftag=450fb754;did=1cd.ad2b02c7>
> <mailto:sip:00923071000202 at sipuas.com:1234;lr;ftag=450fb754;did=1cd.ad2b02c7>*
> *Route: <sip:proxy.com:1234;lr>*
> *
> *
> Contact: <sip:923071000201 at 203.215.176.22:50056>
> <mailto:sip:923071000201 at 203.215.176.22:50056>
> Max-Forwards: 70
> Proxy-Authorization: Digest
> username="923071000201",realm="sip.realm.com",nonce="55e6f4533b45a508ef98ccd396274bf65ba99882",uri="sip:00923071000202 at sip.realm.com:1234"
> <mailto:sip:00923071000202 at sip.realm.com:1234>,response="5eea832060c8218b4229a8623d26bf1d",cnonce="825a886fc914ef2a",nc=00000001,qop=auth,algorithm=MD5
> User-Agent: eyeBeam release 3007n stamp 17816
> Content-Length: 0
>
> ACK must be sent to TOP most Record-route first but its going to
> sceond Record-route first. Is it a correct behavior ?
>
> Regards
> Hamid R. Hashmi
>
> ------------------------------------------------------------------------
> Date: Wed, 2 Sep 2015 11:11:28 -0400
> From: govoiper at gmail.com <mailto:govoiper at gmail.com>
> To: users at lists.opensips.org <mailto:users at lists.opensips.org>
> Subject: Re: [OpenSIPS-Users] ACK did not Receive on Proxy and get
> in loop
>
> I beleive you have to engage NAT corrections in reply route for
> 200OK.
> I havent seen your SIP trace but if im Comtaact header the IP is
> of UAS and it goes to the caller side ACK will get directly to
> that IP.
>
> Just my guess. Need more info from you.
>
> Regards,
> Sammy
>
> On Sep 2, 2015 10:24 AM, "Hamid Hashmi" <hamid2kviii at hotmail.com
> <mailto:hamid2kviii at hotmail.com>> wrote:
>
> ACK is not receiving on Proxy, It directly goes to UAS and get
> in loop at Proxy before relayed to bob. Can you explain why
> ACK is going directly to UAS while all other responses going
> to proxy?
>
> Alice Proxy UAS Bob
>
> | | | |
>
> | INVITE | | |
> |--------------->| INVITE | |
> | 100 |--------------->| |
> |<---------------| INVITE | |
>
> | |<---------------| |
>
> | | | |
>
> | | INVITE |
>
> | |-------------------------------->|
>
> | | | |
> | | 180 |
> | |<--------------------------------|
>
> | | | |
>
> | | 180 | |
>
> | |--------------->| |
>
> | | | |
>
> | | 180 | |
> | 180 |<---------------| |
> |<---------------| | |
>
> | | 200 |
> | |<--------------------------------|
>
> | | | |
>
> | | 200 | |
>
> | |--------------->| |
>
> | | | |
>
> | | 200 | |
> | |<---------------| |
>
> | 200 | | |
>
> |<---------------| | |
>
> | | | |
>
> | ACK | |
> |-------------------------------->| |
>
> | | ACK | |
> | |<---------------| |
> | | | |
>
> | ACK | |
>
> | | | |
>
> | ACK | |
>
> | | | |
>
> | ACK | |
>
> . . . .
>
> . . . .
>
> . . . .
>
>
>
>
> Regards
>
> Hamid R. Hashmi
>
>
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