vmbr0 without physical uplink

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Nov 28, 2023
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Hello! I have what I think is a pretty simple setup with a server running Proxmox with a PfSense VM and other services. I have a 4 port nic passed through to my PfSense VM which gives me five total interfaces showing up in PfSense, the four physical nics and vmbr0. I have a physical cable running from one PfSense port to the motherboard port which is eno1 in Proxmox. I would like to eliminate that cable and just use vmbr0 to connect Proxmox to the LAN. Is that possible?

When I first set up the system I tried bridging vmbr0 to LAN inside PfSense, but I couldn't access the Proxmox web gui. Then I plugged in the physical cable and it froze the entire network like I had created a loop. So the bridge was doing something. I ended up deleting the bridge in PfSense and plugging the physical cable in. That works, but it's inelegant.

I attached a diagram to hopefully illustrate. The red line is the physical ethernet cable I would like to eliminate.

Thanks!
 

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Hello! I have what I think is a pretty simple setup with a server running Proxmox with a PfSense VM and other services. I have a 4 port nic passed through to my PfSense VM which gives me five total interfaces showing up in PfSense, the four physical nics and vmbr0. I have a physical cable running from one PfSense port to the motherboard port which is eno1 in Proxmox. I would like to eliminate that cable and just use vmbr0 to connect Proxmox to the LAN. Is that possible?

When I first set up the system I tried bridging vmbr0 to LAN inside PfSense, but I couldn't access the Proxmox web gui. Then I plugged in the physical cable and it froze the entire network like I had created a loop. So the bridge was doing something. I ended up deleting the bridge in PfSense and plugging the physical cable in. That works, but it's inelegant.

I attached a diagram to hopefully illustrate. The red line is the physical ethernet cable I would like to eliminate.

Thanks!
Assign an ip to the bridge interface for vmbr0. It just cant be in the same subnet as the interface for the port where your 5g modem (port 1) is connected.

It would have to be in the same subnet as your Wifi AP distributed network, (port 3?) if you want to use it from a device on the same wifi network.
 
Assign an ip to the bridge interface for vmbr0. It just cant be in the same subnet as the interface for the port where your 5g modem (port 1) is connected.

It would have to be in the same subnet as your Wifi AP distributed network, (port 3?) if you want to use it from a device on the same wifi network.
In the Proxmox UI under Datacenter>Node>Network the bridge shows the IP as the static IP I set for the node. Do you mean set an IP for that bridge inside PfSense? The IP on the WAN port is my public IP forwarded from the modem.
 

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