Wireguard no ping from Ipfire CLI

Hello Friends,
i have a few Wireguard VPN Net2Net Connections. I can ping the remote Site from any PC on my Network, but not from Ipfire cli.
The remote devices are all AVM Fritz Box. I have some 7590. These work, but 7490 the ping does not work from CLI, it is not a big Problem but the Addon WhoisOnline does not report if the Connection is broken.
Any Ideas?

Can you tell me (step-by-step) how you connected a IPFire to a Fritz 7490 so I can try the same? I have tried to set up a WireGuard site-to-site VPN with IPFire on one side and Fritzbox 7490 on the other side. But I wasn’t able to get it running. However, between two IPFire boxes it runs great.

Hello Alain,
the config files are not the same format, you have to export the Settings from IPfire
Then export the settings from Fritzbox and copy the privatekey publickey and Presharedkey from Ipfire file to the Fritzbox File.
Then you have to change the Endpoint to the dyndns:Port of the IPfire and also
the IPAdresses. Then import the File to the Fritzbox.
If the Fritzbox has some other Wireguard Peers you have to do in other direction. This works for me.

The Fritzbox will need a port forward.
It needs to forward the VPN traffic to the IPFire.
Some home / SOHO routers have a DMZ feature.
Which you can put your IPFire in. This will forward most everything to you DMZ host.

That was not the Question

Thanks for the explanation. I will give it a try and let you know.