[SR-Users] rtpengine nattede WAN address

[Mititelu Stefan]

Hi gerry,

1. The rtpengine is running on the same machine as kamailio? (From
--interface=192.X.X.148!X.X.X.X , I guess so..)
2. Can you paste the rtpengine_offer/rtpengine_answer you are using in
Kamailio config?

I remember trying this approach which worked for me:
- set interface = external/192.X.X.148!X.X.X.X;internal/192.X.X.148
- use rtpengine_manage() in Kamailio config with "direction=external
direction=internal" for incoming calls
- use rtpengine_manage() in Kamailio config with "direction=internal
direction=external" for outgoing calls

Give it a try! :)

---
Stefan


On Wed, May 31, 2017 at 6:31 PM, gerry kernan <gerry.kernan at infinityit.ie>
wrote:

> Hi
>
>
>
> I’m looking to check if what I’m trying to configure is feasible .
>
>
>
> UA -> WAN(X.X.X.X) -> Kamailio(LAN 192.X.X.148) -> internal PBX(LAN
> 192.X.X.131)
>
>
>
> I have a WN IP forwarded to and internal Kamailio server which is sitting
> in front of an asterisk server. SIP requests are sent to asterisk from
> Kamailio via dispatcher .
>
> SIP client can register via WAN and Kamailio to asterisk , I have rtpenine
> configured as below.
>
>
>
> /usr/sbin/rtpengine --interface=192.X.X.148!X.X.X.X --listen-ng=7722
> --timeout=60 --silent-timeout=3600 --pidfile=/var/run/ngcp-rtpengine-daemon.pid
> --table=0 --log-level=6 --log-facility=local7 --log-facility-rtcp=local7
> --homer=192.168.200.5:9060 --homer-protocol=udp --homer-id=2002
>
>
>
>
>
> But SIP SDP when sent to asterisk is still show the WAN IP of the Sip
> client in the SDP offer that goes to asterisk , ive tried adding parameter “*via-branch=”
> **and “**auto-bridge” **to rtpengine_offer but they don’t seem to make a
> difference , is there anyone way I can force the SDP offer that goes to the
> backend PBX to use the IP of Kamailio server that rtpengine is running on
> rather that the WAN IP that I’m advertising(X.X.X.X) ?*
>
>
>
>
>
>
>
> Example SIP SDP from WAN client to asterisk
>
>
>
> *INVITE* sip:*97 at sip.domain.com;transport=UDP SIP/2.0
>
> Via: SIP/2.0/UDP Client-IP:29345;branch=
> *z9hG4bK-524287-1---e38082af1f110ad1*;rport Max-Forwards: 70
>
> Contact: <sip:21 at Client-IP:29345;transport=UDP> To: <sip:*
> 97 at sip.domain.com;transport=UDP>
>
> From: <sip:21 at sip.domain.com;transport=UDP>;tag=*e637343b*
>
> Call-ID: *jvqeIB9f48_OGcTq0UxP7w..*
>
> CSeq: 2 *INVITE* Allow: *INVITE*, ACK, CANCEL, BYE, NOTIFY, REFER,
> MESSAGE, OPTIONS, INFO, SUBSCRIBE
>
> Content-Type: application/sdp
>
> User-Agent: Zoiper rv2.8.40
>
> o=Z
>
> 0 0 IN IP4 Client-IP
>
> s=Z
>
> c=IN IP4 Client-IP
>
> t=0 0
>
> m=audio 29344 RTP/AVP 8 0 101
>
> a=rtpmap:101 telephone-event/8000
>
> a=fmtp:101 0-16
>
> a=sendrecv
>
>
>
> and SDP that Kamailio sends to asterisk
>
>
>
> *INVITE* sip:*97 at sip.domain.com;transport=UDP SIP/2.0
>
> Record-Route: <sip:192.X.X.148;lr>
>
> Via: SIP/2.0/UDP 192.X.X.148;branch=
> *z9hG4bKd924.bcc4248735b53e9cf783c87c81dfee28.0*
>
> Via: SIP/2.0/UDP Client-IP:29345;received=Client-IP;branch=z9hG4bK-
> 524287-1---e38082af1f110ad1;rport=29345 Max-Forwards: 69
>
> Contact: <sip:21 at Client-IP:29345;transport=UDP> To: <sip:*
> 97 at sip.domain.com;transport=UDP>
>
> From: <sip:21 at sip.domain.com;transport=UDP>;tag=*e637343b*
>
> Call-ID: *jvqeIB9f48_OGcTq0UxP7w..*
>
> CSeq: 2 *INVITE* Allow: *INVITE*, ACK, CANCEL, BYE, NOTIFY, REFER,
> MESSAGE, OPTIONS, INFO, SUBSCRIBE
>
> Content-Type: application/sdp User-Agent: Zoiper rv2.8.40
>
>  Path: <sip:192.X.X.148;lr;received=sip:Client-IP:29345>
>
> v=0
>
> o=Z 0 0 IN IP4 Client-IP
>
> s=Z c=IN IP4 X.X.X.X
>
> t=0 0
>
> m=audio 32550 RTP/AVP 8 0 101
>
> a=rtpmap:101 telephone-event/8000
>
> a=fmtp:101 0-16
>
> a=sendrecv
>
> a=rtcp:32551
>
> a=ice-ufrag:Dwd23Dem
>
> a=ice-pwd:9Itp6Cq7lkYJxMkeDeA1I2kkzw
>
> a=candidate:KZyzUR5lXJJpt1Et 1 UDP 2130706431 X.X.X.X 32550 typ host
> a=candidate:KZyzUR5lXJJpt1Et 2 UDP 2130706430 X.X.X.X 32551 typ host
>
>
>
> *Gerry Kernan*
>
>
>
> [image: cid:image001.jpg at 01D105A5.2701B0E0]
>
>
>
> *Infinity IT   |   17 The Mall   |   Beacon Court   |   Sandyford   |
> Dublin D18 E3C8   |   Ireland*
>
> *Tel:  +353 - (0)1 - 293 0090 <+353%201%20293%200090>   |   E-Mail:  *
> gerry.kernan at infinityit.ie
>
>
>
> *Managed IT Services       Infinity IT* - www.infinityit.ie
>
> *IP Telephony                    Asterisk Consulting* –
> www.asteriskconsulting.com
>
> *Contact Centre                Total Interact* – www.totalinteract.com
>
>
>
> _______________________________________________
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>
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