[SOLVED] PPPoE WAN Connection with OPNSense and pfSense Failing

[triumphtruth]

Hello Everyone,
I have been trying to setup my homelab recently, but is failing miserably to be honest. I bought a mini pc with 2 Intell i226-v NICs. The idea was to replace my router with OPNSense / pfSense. My ISP uses PPPoE protocol to provide internet and I searched almost to the best of my abilities and it is getting find of frustrating now. I configured OPNSense (10 times minimum, pure reinstalls following different different guidelines) and pfSense (2 times minimum) but with no avail.

My current setup of Hardware looks like this:


Both interfaces are being recognized by opnsense / pfsense and the LAN port is working as expected (handing out DHCPS to connected clients). The problem is with the WAN port. I believe there is something I am missing from the Proxmox networking. The WAN port is not working, I checked all the logs in pfSense / OPNSense, but there are no logs like it even tried to connect with the ISP, it just says link down, cannot connect. I even ran Packet Capture on the WAN port in pfSense, and it logged nothing. like nothing is going out / in at the port.

I am really puzzled as to what can be the issue, and any help will be very much appreciated.

Thanks in advance.

 

[cwt]

Post your bridge config. Without further informations about your network config it’s pure guessing.

Did you create two bridges, one for each nic? For such setups the simple way is to create one bridge (vmbr0) for LAN interfaces and a second one (vmbr1) for WAN. The NIC on vmbr1 should be connected to your ISP (modem, gateway, fibre, etc.)

 

[tscret]

Hi triumphtruth

As cwt allready wrote we need some more details on your network config. Following your screenshot, you're Link from the ISP Modem is tagged with VLAN 24? I know Setups where the VLAN Tagging is made by the ISP-Modem set to bridge mode. Or are you working with a SFP-Module directly?

Also I wanted to ask if your vmbr1 is set to VLAN-Aware?

Best to work on:
Post output of

cat /etc/network/interfaces
ip a s

 

[triumphtruth]

@cwt and @tscret thank you for taking a look at it. The issue was due to the UPNP protocol that my ISP enforces. I asked them to turn it off for my subscription. After doing that everything worked fine. Thanks a lot for helping it out.