I don't understand how to use OpnSense under Proxmox - it's on a different subnet


New Member
Jul 5, 2023
Hello there, my configuration:

Bell GigaHub ISP modem/router @ (I want to disable all functions and use PPPoE passthrough on OpnSense)
Proxmox Installation @
OpnSense VM under Proxmox installed @

These are all default values, on a brand new Proxmox and OpnSense installation - I was redoing my entire network from scratch - but I'm just a novice home user and now have hit a roadblock.

The OpnSense installed to and can't ping anything, has zero internet connectivity, and obviously cannot even ping it's own Proxmox installation server at

All it can ping is (itself, localhost I guess?) and has no further internet connectivity

I am super confused here, what am I supposed to do?
I created this diagram to help try and explain my current setup, and ultimately what I was hoping to achieve! I have not been able to enter PPPoE credentials yet because OpnSense can't reach the modem in it's current state. I have been trying to read! but I am stumped, sorry about that


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