lost connection on dynamic IP

[Roman Mamedov]

On Thu, 20 May 2021 00:28:08 +0200
Vicente Bergas <vicencb at gmail.com> wrote:

> There is a public IP assigned to the router. The IP is dynamic, so, it
> can change from time to time, but, once assigned, it is exclusive to
> the router.
> There is no carrier-grade NAT.
> I've configured the router to forward the wireguard port to the
> server, so, it is like the server is directly connected to the
> Internet.
> I think the PersistentKeepalive on the server side is not required. Is it?

I believe it is. Consider the server public IP has changed. The server sends
no Keepalives. The client sends them to the server's old IP. The whole thing
broke.

> So, what do you mean is that wireguard does a single DNS resolution at
> the beginning and further DNS resolutions need to be done elsewere. Is
> that correct?

Yes.

-- 
With respect,
Roman