Re: Roaming Mischief

[Aaron Jones <aaronmdjones@gmail.com>]

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On 17/11/17 17:23, Markus Woschank wrote:
> Please prove me wrong and supply an example where it makes sense
> to have a roaming peer's endpoint set, where the roaming peer
> _really_ roams (changes it's IP) and where on
> reboot/reset/whatsoever the originally set endpoint IP in the
> configuration magically makes any sense again.
> 
> Markus

"Originally" is the fallacy. wg-quick(8) can persist the current state
of the interface to the configuration file on shutdown, and restore it
on reboot. This is precisely what you would enable in an actual roaming
scenario.

Roaming means that the current endpoint (at shutdown time) would be
persisted, and if the reboot doesn't take very long, it is highly
likely that the (new) endpoint does still make sense, particularly
because UDP is used which means new sessions can usually resume as if
nothing happened, even through a NAT (though if you are also behind a
NAT, source port randomisation may trip you up if you don't have it
forwarded through the remote one, but that's beside the point).

- -- 
Aaron Jones

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