Re: [Serusers] NAT question...

Richard schrieb: If the callee is in your usrloc there's no problem at all: save() stores the nat flags you set upon checking the callees initial REGISTER. So there's never a problem when the callee is known to you, i.e. has REGISTERed itself at your proxy. So there's no problem for foreign inbound calls to your clients, because you can check on the first INVITE if the foreign client is behind a NAT and you know already if your client is behind a NAT, so you can loop in your RTP relay when needed. The trouble is calls originating from one of your subscribers without NAT to a foreign destination: you don't know anything about their NAT state when SER processes the intiial INVITE. I don't know a way to determine the NAT-state of any foreign destinations while processing the first INVITE. But I think: every domain has to be NAT-able by itself. So if you take care that your NAT'ed clients can be reached and the foreign domain takes care that their NAT'ed clients can be reached about the same way, there should be no problem. Just my two cents. Alex Mack