[Solved] No Access from another private subnet

[Stoffel_Hessen]

Hello community,

I have reinstalled proxmox and am now taking the first steps.

I have successfully moved my HomeAssistant from physics to a VM on proxmox. From my local LAN, I can access the HA interface with http://192.168.0.111:8123 without any problems. From a remote private network via a side-by-side tunnel from the 192.168.7.0/24 network, access to the HA interface is unfortunately not possible. This worked without any problems before the migration to the VM.

What do I have to configure where to make this possible again?
Thank you very much for your support

Greetings Christopher

 

[Hannes Laimer]

Hey,

can you ping the PVE host(from 192.168.7.0/24)? I assume the whole 192.168.0.0/24 network is routed through the tunnel, does communication between those two networks generally work? What handles the routing between those two network, your router, or is that done on the PVE host?

 

[Stoffel_Hessen]

Hey,

yes, routing is handled by the Fritzbox or the SSG. Yes, the networks are each routed as /24 through the tunnels with Any/Any
A ping/traceroute is only possible to Proxmox, otherwise to no client.
The Proxmox admin interface is also accessible via port 8006, as well as via SSH

 

[Hannes Laimer]

A ping/traceroute is only possible to Proxmox, otherwise to no client.

This sounds like the problem, it looks like only traffic for PVE is routed through the tunnel. Is the PVE host also on 192.168.0.0/24?

 

[Stoffel_Hessen]

All other connections through the tunnel to the IPs .10, .100, .101 work.
I think it is a firewall problem of PVE although it is still disabled.
The services can be reached from the local network.

 

[Stoffel_Hessen]

I have found the error, in the FritzBox there was an access list which devices are allowed to use the VPN connection.
Due to the new MAC address, the names have changed here despite identical IPs.
Thank you very much for your support

Best regards,
Christopher