Re: TLS key negotiation failed to occur ISP screws up the VPN

Antonio Quartulli <[email protected]> Fri, 17 May 2024 14:39:20 +0200
Newsgroups gmane.network.openvpn.user
Message-ID <[email protected]>
Hi,

On 17/05/2024 14:12, shadowbladeee via Openvpn-users wrote:
> So here is what is interesting, packets are "sipping in" so you cannot say it's a firewall issue, especially as I said nothing changed from my side and all the components were even rebooted.
> 
> Here is what I tried:
> 
> 1, tried to move the udp port -> didn't help
> 
> 2, switched from udp to tcp -> didn't help

Am I right saying that both log and tcpdump output are from the endpoint 
that "receives" the connection? (i.e. the server).

If that's the cas,e we see the server that does not reply (tcpdump), but 
also does not print any reason for rejection.

I wonder if the server is sending its reply over another interface and 
thus getting lost?

Have you tried running tcpdump with '-i any'?

Regards,


-- 
Antonio Quartulli