[SR-Users] using kamailio with clients in a nat environment

[Daniel-Constantin Mierla]

Hello,

the sdp does not show that rtpproxy was engaged. Check your config, you 
can use debugger module with cfgtrace on to see what actions are executed.

Also, probably you have to advertise the public ip address of your ec2 
instance -- see second parameter for rtpproxy module functions.

Cheers,
Daniel

On 9/11/12 3:52 AM, David Thomson wrote:
> Hi,
>
> I'm using rtpproxy and per the documentation:
> rtpproxy -l public_ip -s udp:localhost:22222 -F
>
> Attached is the following:
> Dave registering
> Daniel registering
> Dave calling Daniel, where Dave has a public IP and Daniel is behind a 
> nat.
>
> Please let me know what you think is up.
>
> ttyl,
> Dave
>
> [...]
>
> #
> U 207.219.69.217:40821 -> 10.248.96.110:5060
> INVITE sip:daniel at 54.245.31.65 SIP/2.0.
> Via: SIP/2.0/UDP 
> 10.207.158.89:51362;rport;branch=z9hG4bKPj7ohi7tDsVbjxTKXgNQsTviH-zPxv0rBF.
> Max-Forwards: 70.
> From: <sip:dave at 54.245.31.65>;tag=BDvpvvb0IsNu9oFPCeO2XI-M-Qwl7V4S.
> To: <sip:daniel at 54.245.31.65>.
> Contact: <sip:dave at 207.219.69.217:40821;ob>.
> Call-ID: cG7lF7dXytDwgmhVa19g0aGEOa6s1Rxl.
> CSeq: 17407 INVITE.
> Route: <sip:54.245.31.65;transport=udp;lr>.
> Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, SUBSCRIBE, NOTIFY, 
> REFER, MESSAGE, OPTIONS.
> Supported: replaces, 100rel, timer, norefersub.
> Session-Expires: 1800.
> Min-SE: 90.
> User-Agent: CSipSimple_SGH-T989D-15/r1841.
> Content-Type: application/sdp.
> Content-Length:   425.
> .
> v=0.
> o=- 3556317015 3556317015 IN IP4 10.207.158.89.
> s=pjmedia.
> t=0 0.
> m=audio 4008 RTP/AVP 96 3 0 8 101.
> c=IN IP4 10.207.158.89.
> a=rtcp:4009 IN IP4 10.207.158.89.
> a=sendrecv.
> a=rtpmap:96 SILK/8000.
> a=fmtp:96 useinbandfec=0.
> a=rtpmap:3 GSM/8000.
> a=rtpmap:0 PCMU/8000.
> a=rtpmap:8 PCMA/8000.
> a=rtpmap:101 telephone-event/8000.
> a=fmtp:101 0-15.
> a=zrtp-hash:1.10 
> 0a851ee8921d1f71658c8253dd6097893c48e40886759ec0e21e79a61c1f1289.
>
> #
> U 10.248.96.110:5060 -> 207.219.69.217:40821
> SIP/2.0 100 trying -- your call is important to us.
> Via: SIP/2.0/UDP 
> 10.207.158.89:51362;rport=40821;branch=z9hG4bKPj7ohi7tDsVbjxTKXgNQsTviH-zPxv0rBF;received=207.219.69.217.
> From: <sip:dave at 54.245.31.65>;tag=BDvpvvb0IsNu9oFPCeO2XI-M-Qwl7V4S.
> To: <sip:daniel at 54.245.31.65>.
> Call-ID: cG7lF7dXytDwgmhVa19g0aGEOa6s1Rxl.
> CSeq: 17407 INVITE.
> Server: kamailio (3.3.0 (x86_64/linux)).
> Content-Length: 0.
> .
>
> #
> U 10.248.96.110:5060 -> 75.119.228.57:5060
> INVITE 
> sip:daniel at 192.168.1.102:5060;transport=udp;registering_acc=54_245_31_65 
> SIP/2.0.
> Record-Route: <sip:54.245.31.65;lr=on;nat=yes>.
> Via: SIP/2.0/UDP 54.245.31.65:5060;branch=z9hG4bKd6f6.b6db86e5.0.
> Via: SIP/2.0/UDP 
> 10.207.158.89:51362;received=207.219.69.217;rport=40821;branch=z9hG4bKPj7ohi7tDsVbjxTKXgNQsTviH-zPxv0rBF.
> Max-Forwards: 69.
> From: <sip:dave at 54.245.31.65>;tag=BDvpvvb0IsNu9oFPCeO2XI-M-Qwl7V4S.
> To: <sip:daniel at 54.245.31.65>.
> Contact: <sip:dave at 207.219.69.217:40821;ob>.
> Call-ID: cG7lF7dXytDwgmhVa19g0aGEOa6s1Rxl.
> CSeq: 17407 INVITE.
> Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, SUBSCRIBE, NOTIFY, 
> REFER, MESSAGE, OPTIONS.
> Supported: replaces, 100rel, timer, norefersub.
> Session-Expires: 1800.
> Min-SE: 90.
> User-Agent: CSipSimple_SGH-T989D-15/r1841.
> Content-Type: application/sdp.
> Content-Length:   425.
> .
> v=0.
> o=- 3556317015 3556317015 IN IP4 10.207.158.89.
> s=pjmedia.
> t=0 0.
> m=audio 4008 RTP/AVP 96 3 0 8 101.
> c=IN IP4 10.207.158.89.
> a=rtcp:4009 IN IP4 10.207.158.89.
> a=sendrecv.
> a=rtpmap:96 SILK/8000.
> a=fmtp:96 useinbandfec=0.
> a=rtpmap:3 GSM/8000.
> a=rtpmap:0 PCMU/8000.
> a=rtpmap:8 PCMA/8000.
> a=rtpmap:101 telephone-event/8000.
> a=fmtp:101 0-15.
> a=zrtp-hash:1.10 
> 0a851ee8921d1f71658c8253dd6097893c48e40886759ec0e21e79a61c1f1289.
>

-- 
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Training, Berlin, Nov 5-8, 2012 - http://asipto.com/u/kat
Kamailio Advanced Training, Miami, USA, Nov 12-14, 2012 - http://asipto.com/u/katu

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