that means there's no way to differentiate which NAT the UA is from in the routing script alone? any other way beside using STUN?

regards, Chia

-----Original message----- From: Klaus Darilion klaus.mailinglists@pernau.at Date: Fri, 24 Jun 2005 19:44:28 +0800 To: Chia Huey Lim chiahuey@genme.com Subject: Re: [Serusers] Symmetric NAT

The NAT detection must be done by the client, e.g. using STUN. If the client detects symmetric NAT, it has to use the private IP in Via. Thus, the proxy can detect that this client is unable of NAT traversal (using the NAT checks from nathelper)

regards, klaus

Chia Huey Lim wrote:

...

Is there anyway to test if the UA is from symmetric NAT?

Regards,

Chia

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