[arch-general] Wireguard

[siefke_listen at web.de]

Hello, 

had someone run wireguard?`I have read today about it and try to run 
it through the Tutorial 

https://emanuelduss.ch/2018/09/wireguard-vpn-road-warrior-setup/

So all is connected, all looks as it work. But someone is wrong
cause the ping work not correct. 

>From client
PING 10.23.5.1 (10.23.5.1) 56(84) bytes of data.
>From 10.23.5.2 icmp_seq=1 Destination Host Unreachable
ping: sendmsg: Der notwendige Schlüssel ist nicht verfügbar*
>From 10.23.5.2 icmp_seq=2 Destination Host Unreachable
ping: sendmsg: Der notwendige Schlüssel ist nicht verfügbar
>From 10.23.5.2 icmp_seq=3 Destination Host Unreachable
ping: sendmsg: Der notwendige Schlüssel ist nicht verfügbar
>From 10.23.5.2 icmp_seq=4 Destination Host Unreachable
ping: sendmsg: Der notwendige Schlüssel ist nicht verfügbar

*The necessary key is not available

>From Server
ping 10.23.5.2
PING 10.23.5.2 (10.23.5.2) 56(84) bytes of data.
>From 10.23.5.1 icmp_seq=1 Destination Host Unreachable
ping: sendmsg: Destination address required
>From 10.23.5.1 icmp_seq=2 Destination Host Unreachable
ping: sendmsg: Destination address required
>From 10.23.5.1 icmp_seq=3 Destination Host Unreachable
ping: sendmsg: Destination address required
>From 10.23.5.1 icmp_seq=4 Destination Host Unreachable
ping: sendmsg: Destination address required
>From 10.23.5.1 icmp_seq=5 Destination Host Unreachable
ping: sendmsg: Destination address required


So all commands which be in the tutorial are present. ip a l wg0, wg show
okay wg show give not more information self when clients are connected. 

Have here someone idea? Is there a way to become more log information? 
Maybe a tutorial which is more for Arch? 

Thank you for help & Nice new year
Silvio