Host can't update, but VM's can access internet.

[Jonasmedj]

Hello all!

I've recently launched a proxmox server with 3 VM's. The VM's are the following: RHEL, Windows and OPNsense.

My LAN is on this subnet: 10.0.115.0/24.

My Proxmox host is located on 10.0.115.253.
Proxmox gateways:
WAN: 10.0.115.252
LAN: Nothing.

My RHEL VM is located on 10.0.115.250

Finally my Windows VM is located on 10.0.115.240.

My OPNsense acts as a WAN/LAN firewall, which is also located on 10.0.115.252/24.

The gateways I have on my OPNsense firewall:
LAN: 10.0.115.252
WAN: 10.0.142.1


My issue is that I can't ping neither the firewall (10.0.115.252) or any public DNS servers (1.1.1.1, 8.8.8.8). My DNS servers are correct.

Does anyone have any ideas? I can of course provide more information if needed.

 

[Jonasmedj]

Follow up:

My OPNsense VM is getting a WAN address from DHCP, which is 10.0.142.19, which is routing to 10.0.142.1.

I have 0 clue as to what might be the issue - I can't find the proxmox host in my OPNsense ARP table, I can't ping it or anything. I've tried changing the host gateway to the one shown above, without success.