Let me preface, I am by no means a networking or firewall expert, but I am currently building a small Proxmox server that will be running a mix of VMs and containers, and I am planning on putting an OPNSense in front of it all.
I have a routed /29, in a linknet, but I am wondering on how to best separate the individual servers in a virtual environment.
Should I create a proxmox bridge for each, and end up with an OPN with 10+ virtual NICs, or would it be better to use VLAN devices and a single bridge proxmox VLAN aware bridge, with all servers connected?
Or is there possible a better suited solution for a setup like this?
You should prefer the segmentation on the hypervisor over VLANs.
VLANs are only needed to lead out the network of Proxmox.