[OpenSIPS-Users] ACK did not Receive on Proxy and get in loop

Bogdan-Andrei Iancu bogdan at opensips.org
Wed Sep 9 16:20:59 CEST 2015 

In that case, you probably do a wrong fix_nated_contact() or similar for 
the 200 OK reply coming from a not-nated entity.

Regards,

Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com

On 09.09.2015 15:08, Hamid Hashmi wrote:
> Hi Bogdan
>
> Yes, UAS is an opensips too, by chance.
>
> Regards
> Hamid R. Hashmi
>
> ------------------------------------------------------------------------
> Date: Wed, 9 Sep 2015 14:47:10 +0300
> From: bogdan at opensips.org
> To: hamid2kviii at hotmail.com; users at lists.opensips.org
> Subject: Re: [OpenSIPS-Users] ACK did not Receive on Proxy and get in loop
>
> Hi Hamid,
>
> I see the UAS is breaking the contact by re-writing it with the IP of 
> the proxy. Is the UAS an opensips too, by chance ?
>
> Regards,
> Bogdan-Andrei Iancu
> OpenSIPS Founder and Developer
> http://www.opensips-solutions.com
> On 09.09.2015 14:21, Hamid Hashmi wrote:
>
>     Bogdan
>
>     I used local cache to store the Request URI and then changed the
>     contact Header of 200 OK at Proxy by replacing the contact from
>     RURI. It worked for me. But you can see in 200 OK UAS-Proxy that
>     UAS is changing the Contact with proxy IP.
>
>     *Bob-Proxy*
>
>     SIP/2.0 200 OK
>     Via: SIP/2.0/UDP proxy.com:7000;branch=z9hG4bK9347.84c78b97.0
>     Via: SIP/2.0/UDP sipuas.com:7000;branch=z9hG4bK9347.4f022b62.0
>     Via: SIP/2.0/UDP proxy.com:7000;branch=z9hG4bK9347.74c78b97.0
>     Via: SIP/2.0/UDP
>     172.16.37.66:5065;received=203.215.176.22;rport=33611;branch=z9hG4bK266489159
>     Record-Route: <sip:proxy.com:7000;lr;ftag=1397829413>
>     Record-Route:
>     <sip:923071000202 at sipuas.com:7000;lr;ftag=1397829413;did=bbf.3846c9b2>
>     <mailto:sip:923071000202 at sipuas.com:7000;lr;ftag=1397829413;did=bbf.3846c9b2>
>     Record-Route: <sip:proxy.com:7000;lr;ftag=1397829413;EdgeProxy=true>
>     Contact: <sip:923071000202 at 139.190.68.251:34580;transport=UDP>
>     <mailto:sip:923071000202 at 139.190.68.251:34580;transport=UDP>
>     To: <sip:923071000202 at sip.realm.com:7000>
>     <mailto:sip:923071000202 at sip.realm.com:7000>;tag=ab9efd6a
>     From: "+923071000201" <sip:+923071000201 at sip.realm.com>
>     <mailto:sip:+923071000201 at sip.realm.com>;tag=1397829413
>     Call-ID: 146889629
>     CSeq: 21 INVITE
>     Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS,
>     INFO, SUBSCRIBE
>     Content-Type: application/sdp
>     Supported: replaces, norefersub, extended-refer, timer, outbound,
>     path, X-cisco-serviceuri
>     User-Agent: Zoiper r30645
>     Allow-Events: presence, kpml
>     Content-Length: 243
>
>     *proxy-UAS*
>
>     SIP/2.0 200 OK
>     Via: SIP/2.0/UDP sipuas.com:7000;branch=z9hG4bK9347.4f022b62.0
>     Via: SIP/2.0/UDP proxy.com:7000;branch=z9hG4bK9347.74c78b97.0
>     Via: SIP/2.0/UDP
>     172.16.37.66:5065;received=203.215.176.22;rport=33611;branch=z9hG4bK266489159
>     Record-Route: <sip:proxy.com:7000;lr;ftag=1397829413>
>     Record-Route:
>     <sip:923071000202 at sipuas.com:7000;lr;ftag=1397829413;did=bbf.3846c9b2>
>     <mailto:sip:923071000202 at sipuas.com:7000;lr;ftag=1397829413;did=bbf.3846c9b2>
>     Record-Route: <sip:proxy.com:7000;lr;ftag=1397829413;EdgeProxy=true>
>     Contact: <sip:923071000202 at 139.190.68.251:34580;transport=UDP>
>     <mailto:sip:923071000202 at 139.190.68.251:34580;transport=UDP>
>     To: <sip:923071000202 at sip.realm.com:7000>
>     <mailto:sip:923071000202 at sip.realm.com:7000>;tag=ab9efd6a
>     From: "+923071000201" <sip:+923071000201 at sip.realm.com>
>     <mailto:sip:+923071000201 at sip.realm.com>;tag=1397829413
>     Call-ID: 146889629
>     CSeq: 21 INVITE
>     Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS,
>     INFO, SUBSCRIBE
>     Content-Type: application/sdp
>     Supported: replaces, norefersub, extended-refer, timer, outbound,
>     path, X-cisco-serviceuri
>     User-Agent: Zoiper r30645
>     Allow-Events: presence, kpml
>     Content-Length: 243
>
>     *UAS-Proxy*
>
>     SIP/2.0 200 OK
>     Via: SIP/2.0/UDP proxy.com:7000;branch=z9hG4bK9347.74c78b97.0
>     Via: SIP/2.0/UDP
>     172.16.37.66:5065;received=203.215.176.22;rport=33611;branch=z9hG4bK266489159
>     Record-Route: <sip:proxy.com:7000;lr;ftag=1397829413>
>     Record-Route:
>     <sip:923071000202 at sipuas.com:7000;lr;ftag=1397829413;did=bbf.3846c9b2>
>     <mailto:sip:923071000202 at sipuas.com:7000;lr;ftag=1397829413;did=bbf.3846c9b2>
>     Record-Route: <sip:proxy.com:7000;lr;ftag=1397829413;EdgeProxy=true>
>     Contact: <sip:923071000202 at proxy.com:7000;transport=UDP>
>     <mailto:sip:923071000202 at proxy.com:7000;transport=UDP>
>     To: <sip:923071000202 at sip.realm.com:7000>
>     <mailto:sip:923071000202 at sip.realm.com:7000>;tag=ab9efd6a
>     From: <sip:923071000201 at sip.realm.com:7000>
>     <mailto:sip:923071000201 at sip.realm.com:7000>;tag=1397829413
>     Call-ID: 146889629
>     CSeq: 21 INVITE
>     Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS,
>     INFO, SUBSCRIBE
>     Content-Type: application/sdp
>     Supported: replaces, norefersub, extended-refer, timer, outbound,
>     path, X-cisco-serviceuri
>     User-Agent: Zoiper r30645
>     Allow-Events: presence, kpml
>     Content-Length: 257
>
>     *Proxy-Alice **# remove_hf("Contact");  append_hf("Contact:
>     <$var(uri)>;transport=UDP>/r/n");*
>
>     SIP/2.0 200 OK
>     Via: SIP/2.0/UDP
>     172.16.37.66:5065;received=203.215.176.22;rport=33611;branch=z9hG4bK266489159
>     Record-Route: <sip:proxy.com:7000;lr;ftag=1397829413>
>     Record-Route:
>     <sip:923071000202 at sipuas.com:7000;lr;ftag=1397829413;did=bbf.3846c9b2>
>     <mailto:sip:923071000202 at sipuas.com:7000;lr;ftag=1397829413;did=bbf.3846c9b2>
>     Record-Route: <sip:proxy.com:7000;lr;ftag=1397829413;EdgeProxy=true>
>     To: <sip:923071000202 at sip.realm.com:7000>
>     <mailto:sip:923071000202 at sip.realm.com:7000>;tag=ab9efd6a
>     From: <sip:923071000201 at sip.realm.com:7000>
>     <mailto:sip:923071000201 at sip.realm.com:7000>;tag=1397829413
>     Call-ID: 146889629
>     CSeq: 21 INVITE
>     Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS,
>     INFO, SUBSCRIBE
>     Content-Type: application/sdp
>     Supported: replaces, norefersub, extended-refer, timer, outbound,
>     path, X-cisco-serviceuri
>     User-Agent: Zoiper r30645
>     Allow-Events: presence, kpml
>     Content-Length: 257
>     Contact: <sip:923071000202 at 139.190.68.251:34580;transport=UDP>
>     <mailto:sip:923071000202 at 139.190.68.251:34580;transport=UDP>
>
>
>     Regards
>     Hamid R. Hashmi
>
>

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