[jdev] New(?) NAT-to-NAT client-server tunneling method

Winfried Tilanus winfried at tilanus.com
Mon Mar 29 08:16:45 CDT 2010

On 03/29/2010 Pedro Melo wrote:

Hi Pedro,

> found this today, seems to work between my office and home networks,
> both behind NAT.

This technique has been around for some time already. Although it works
in many cases, it is quite an hack and an abuse of the UDP protocol. I
don't see any use for it in the context of XMPP.

And if I was a network administrator I would certainly try to block it
in my firewall or make it trigger my IDS.

best wishes,


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