[Serusers] NAT traversal
Jan Janak
jan at iptel.org
Sun Jul 24 00:22:35 CEST 2005
On 20-07-2005 09:35, Greger V. Teigre wrote:
> Omer,
> I'm not aware of anybody using mangler?! (Is this really true?)
Yes, that module is somehow outdated and has been mostly replaced by
nathelper.
Jan.
> The simplest solution (see my earlier post today on STUN) would be to use
> STUN if the endpoints have an ok implementation.
> If not, you can use nathelper to change Contact (fix_nated_contact) and
> fix_nated_sdp to change the media IP. You will still have a problem with
> finding the RTP port, so unless one endpoint is public or support
> direction=active, you need to proxy the rtp stream.
>
> Or if you have symmetric NATs, you need to use RTP proxy anyway because
> incoming calls to symmetric NATs must be proxied regardless of whether the
> other endpoint is public or NATed (unless it supports direction=active).
>
> g-)
>
> Omer Tapankul wrote:
> >Hi all,
> >
> >I'm working for a nat traversal scenerio.
> >The case is both endpoints are behind NAT (ADSL clients) and SER is
> >on the real network. In this project I dont want to implement a rtp
> >proxy because I have limited bandwidth on real network. I want
> >clients to pass signaling to me and rtp directly between eachother.
> >
> >I have tried some configurations with module mangler but i could not
> >manage to create rtp session properly.
> >
> >What do you think about the solution and if you can mail a sample
> >configuration I will be very happy.
> >
> >Regards,
> >
> >Omer
> >
> >
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> >serusers at lists.iptel.org
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>
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