[Serusers] NAT Traversal using nathelper module

samuel samu60 at gmail.com
Mon May 8 09:31:47 CEST 2006


This is just the on_reply part of the ser config file to handle
replies behind NAT. Obviously you have to check in the route[x] wether
the calling UA is behind NAT and apply the appropriate
mediaproxy|rtpproxy.

Samuel

2006/5/8, O. <ozaarur at gmail.com>:
> thanks, so we have to keep the proxy.
> In this case when one of the client will be behind nat does the proxy
> will transfer the RTP? or still the the RTP will be route without proxy
> involved?
>
> Thanks,
> O.
>
> On Sat, 2006-05-06 at 23:57 +0200, Ladislav Andel wrote:
> > Hi O.,
> > This will work only with one NAT involved in SIP dialog. If you have
> > both clients behind NAT then RTPproxy or Mediaproxy is necessary. Also,
> > your clients has to support active/passive direction attribute and be
> > able to read source IP:port address from the first RTP packet received.
> >
> > Regards,
> > Ladislav
> >
> >
> > O. wrote:
> > > Hi Kostas and samuel,
> > >
> > > In the case you are describing, using nathelper will replace the
> > > rtpproxy or medianproxy? It looks to me that in this case the rtp will
> > > be route in between the sip client, without any proxy. In the
> > > configuration you mentioned the ser is on public IP?
> > > if this is the case it looks much better the proxy from the load
> > > prospective.
> > >
> > > thanks,
> > > O.
> > >
> >
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