this post was submitted on 20 Aug 2025
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I'm planning out a proxmox box with an OPNsense VM for an upcoming build. I want to consolidate multiple little boxes into one more capable device.

I was planning on using a dual port NIC that I would passthru to the OPNsense VM. I like the idea of the WAN interface being piped directly to the VM rather than passing through the host and being presented as a virtual device. But that means BSD has to play nice with it and as I understand it, BSD network drivers can be temperamental and intel's drivers are just better.

I was looking at using a cheap dual port intel 226v NIC for this, but intel's not in a great place right now so I'd like to consider other options. Everywhere online, people scream "only use intel NICs for this" but I find it ridiculous that in 2025, nobody else has managed to make stable drivers for their hardware in this use case.

What are your experiences with non-intel NICs in OPNsense?

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[–] lemming741@lemmy.world 4 points 2 months ago* (last edited 2 months ago)

I know you're looking for non-intel solutions but here is my setup-

Mobo r8169 is the management interface for proxmox.

X710 4 port:
3 ports passed as a a single vmbr for LAN:
- 1 fiber optic to detached building
- 1 DAC to core switch
- 1 DAC to workstation
1 port passed as vmbr for WAN

That config was sorta inherited by trying to pass other non-intel nics as pcie and failing. I needed an sfp for the fiber run so I got that 4 port Intel card. It works well enough that I haven't bothered to reconfigure it to pass the Intel as pcie.