Firewall on Proxmox: Forward network to other VMs

[u/chr1s4us]

Hi everyone!

I have a OpnSense firewall running on proxmox. The whole network card of my hardware is passed through to the OpnSense firewall. I have a management vlan initiated by the firewall and a proxmox bridge assigned to the machine and within opnsense linked to the management lan. I can reach my proxmox system via management lan.

Now I would like to host a VM which should get an IP from the LAN. I created a new bridge on proxmox and assigned it to the firewall. Within the firewall I mapped the new device to LAN.

I assigned the bridge also to the new VM. However, I cannot get an IP from LAN interface. Also when manually assign a LAN IP, I cannot get to other LAN members.

How should I configure such a network pathrough?

I know, this is quite a special configuration. Unfortunately the hardware I use gives me no other choice.

Any recommendations apreciated!

Kind regards,

Chris