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VLAN question (lemmy.world)

submitted 5 months ago* (last edited 5 months ago) by [email protected] to c/[email protected]

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I've finally been connected to a fiber connection 2,5/1Gbps! 🥳 Now I want to share my connection with my neighbor and so I've installed 3 PCIx dual 1GB nic (I'm out of PCIe slots 🤷‍♂️).

The connections comes from my OPNsense to the server (Proxmox) via a 10Gbps fiber connection.

I want OPNsense to take car of firewalling dividing the neighbor networks with VLANs. The OPNsense part is done and working, I need to assign to each of the 6 1Gbps NIC each VLAN.

I've tagged the traffic going into the server via the fiber connection, but now how can I assign each VLAN to each NIC? Thanks!

Edit: Proxmox has nothing to do in the equation, it just happens to be on the same server where the NICs are.

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[–] [email protected] 2 points 5 months ago (8 children)

Forget everything that I've written, I just need to assign 6 VLAN (tagged, coming in from enp2s0) to 6 NICs (untagged to: enp9s1f0, enp9s1f1, enp9s2f0, enp9s2f1, enp10s1f0, enp10s1f1).

[–] [email protected] 4 points 5 months ago* (last edited 5 months ago) (7 children)

If the connections are already tagged as you come into the Proxmox server, then you need only to create interfaces for them in Proxmox (vmbr1, vmbr2, etc). EDIT: if you’re doing PCI passthrough of the physical NICs, ignore this step.

Then, in OPNsense, you just adding the individual interfaces. No need to assign a VLAN inside OPnsense because the traffic is already tagged on the network (per your earlier statement).

Whether or not the managed switch that has tagged each port is also providing VLAN isolation, you’ll simply use the OPNsense firewall to provide isolation, which it does by default. You’ll use it to allow the connections access to the fiber WAN gateway.

[–] [email protected] 1 points 5 months ago (6 children)

I've just edited the original post to make clear that Proxmox has nothing to do in this picture, it just is installed in the same PC where the NICs are. What I need it just assign 6 VLAN (tagged, coming in from enp2s0) to 6 NICs (untagged to: enp9s1f0, enp9s1f1, enp9s2f0, enp9s2f1, enp10s1f0, enp10s1f1).

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