OpnSense on proxmox

[dexznrl]

Hello there everybody,

I'm running a dedicated server at Hetzner.
On the server I'm running proxmox.
On proxmox I'm running Opnsense as a firewall and behind that firewall I have a couple of virtual servers running.

A bit messy ofcourse .

Opnsense already has a WAN address but I need a couple more so I ordered them from Hetzner and got them.

Now Hetzner demands that every IP address has a specified mac address and for me that means I can't just take one of the extra IP-addresses I got from Hetzner and put it as a virtual IP on Opnsense because I can't assign the specified mac address to that interface.

So what I would like to do is create a new interface in Proxmox that is somehow bound to the NIC and then add that inteface to Opnsense and give it my secondary IP with the specified mac address I got from Hetzner.

How can I do this?
Or is there any other solution that would work for this?

I'm no proxmox guru so if you have the time I would appreciate it.

 

[news]

Do you check and test the vmbrX interface for that?

 

[dexznrl]

If I try to add a second Linux bridge to the same interface I only get:
Parameter verification failed. (400)

bridge_ports: enp98s0f0 is already used on interface 'vmbr0'

So that doesn't work .

 

[news]

Do you know: https://wiki.debian.org/NetworkConfiguration ?

See: "Multiple IP addresses on one Interface"
with eth0:0 etc.