Re: [SR-Users] Kamalio + RTP Engine + SIP Client behind NAT

Are you using nathelper? it should take care of that for you. although old, this might point in the right direction https://nil.uniza.sk/configuring-nat-traversal-using-kamailio-31-and-rtppro… Regards, David Villasmil email: david.villasmil.work(a)gmail.com phone: +34669448337 On Wed, Jan 15, 2020 at 6:47 PM Nuno Miguel Reis <nmreis(a)student.dei.uc.pt> wrote: > Hi guys. > > I'm replacing a environment where I was using kamailio + freeswitch by > another where I'm adding rtpengine to the mix. > One of the issues I'm having now is when I have a SIP Client behind NAT: > > When I send the INVITE from the SIP Client, the SDP is using the private > LAN IP address + the advertised media port, let's admit it's > 10.10.10.10:5000 when the call establishes with a public server running > kamailio + rtpengine, the actual RTP arrives from the home router public IP > on a natted port, let's admit it's 100.100.100.100:65100, event though, > RTPENGINE assumes that RTP stream is coming from 100.100.100.100:5000. > I'm using the '--sip-source' with RTPENGINE to make it use the received ip > address instead of the private IP coming in the SDP but I'm not finding > anything to make RTPENGINE adapt an start sending the RTP FLOW to the port > where he starts receiving the RTP flow from, discarding the SDP media port > information. > > In my previous setup with freeswitch alone, freeswitch did this > transparently. How do you guys solve this issue in RTPENGINE? > > Regards, > -- > Nuno Miguel Reis > Departamento de Engenharia Informática > Faculdade de Ciências e Tecnologia > Universidade de Coimbra > _______________________________________________ > Kamailio (SER) - Users Mailing List > sr-users(a)lists.kamailio.org > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users >

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