RE: [Geopriv] draft-thomson-geopriv-lis-discovery-00

Hi Cullen,

The intent is not to discover the outermost NAT, at least not always. If you look at the cases where two layers of NAT are used, a LIS is likely to exist within the second layer.

I'm thinking primarily of cable networks where it is common to have a NAT on the customer premises and another NAT for the entire ISP network (or parts thereof). Say these are a 192.168.x.x (in my house) and a 10.x.x.x (for my ISP). The ISP LIS needs to exist in the larger network so that it can see the necessary identifiers (primarly, the 10.x.x.x address that is given to your house/modem/router/NAT). In this case, resolving the IP of the outermost NAT is counterproductive.

Perhaps this discussion is worth including in the draft.

Cheers,
Martin

> -----Original Message-----
> From: Cullen Jennings [mailto:fluffy@cisco.com]
> Sent: Sunday, 11 March 2007 9:00 AM
> To: geopriv@ietf.org
> Subject: [Geopriv] draft-thomson-geopriv-lis-discovery-00
>
>
> UPnP will not discover the outer most NAT so I don think it should be
> used here.
>
> Cullen <with my individual hat on>
>
>
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> Geopriv@ietf.org
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Received on Sun, 11 Mar 2007 18:19:25 -0500