Re: IPfilter and Nintendo Switch

[Martin Husemann <martin%duskware.de@localhost>]

On Sat, Feb 27, 2021 at 07:44:51AM +0100, Emmanuel Dreyfus wrote:
> The Nintendo Switch reports a B grade. However, I do not understand how
> source ports can be preserved on a 1:n IP addresses mapping, I suspect
> they get preserved most of the time?

I would guess the console tries to learn its outside port and IP and
if it can not talk to a UPnP daemon on the router just tries a 1:1
mapping.

Martin