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Thanks resident experts!
I think this thread serves as the definitive "OPnsense router with Unifi switches" need to know.

Sorry to revive this thread, but I just setup OPnsense and have a Unifi switch incoming.

I will make the untagged/VLAN 1 my management VLAN.

But I'm not wrapping my head around the best way to implement the links between OPNsense and Unifi switch, given the warnings out there around mixing untagged/tagged on same interface. And I'm not a networking guy so apologies.

My OPNsense is a Proxmox VM running on a device with 6 physical network interfaces:
(4) Intel I226 2.5gbe, (2) 10gb Intel X710.

I initially set up the VM with two virtual NIC:
Eth0 (physical NIC 1 - 2.5gbe) = vtnet0 = WAN
Eth4 (physical NIC 5 - 10gbe) = vtnet1 = LAN



Since I have plenty of NIC what's the best plan for this homelab setup?

1) Ignore the mixing tagged/untagged warnings, use the "LAN" interface for the untagged mgmt VLAN and all my device VLANs children of LAN?

Or

2) somehow use a separate NIC in Opnsense configured to only do the untagged network, and another for only the tagged VLANs?


If #2 I need some pointers on exactly how to do this since the initial OPnsense configuration is working like #1.

Thanks for your expertise.