Linux NAT MASQUERADE and STUN

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On Mon, Aug 11, 2008 at 3:24 PM, Philippe HENSEL <philippe.hensel at uha.fr>wrote:

> Some words about Linux NAT done with iptables MASQUERADE :
>
> - STUN public address/port resolution is non sense for Symmetric NAT
> because it changes for each different destination address/port.
> So when pjsip detects Symmetric NAT it is not recommend to use
> the resolved public adress/port.
>
>
That's not true. You can still use it depending on the NAT type of the other
guy.



> - Linux standard NAT does not have ALG function because there is
> a specific module for it :http://www.iptel.org/sipalg/
>
>
Well whatever they call it, but it messes up with the IP addresses in
SIP/SDP so that's makes it an ALG to me. Or maybe there's a better term for
this.

Cheers
 Benny
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