OPNsense Forum

English Forums => Intrusion Detection and Prevention => Topic started by: runo10 on September 14, 2025, 07:20:26 PM

Title: Transparent Bridge Mode
Post by: runo10 on September 14, 2025, 07:20:26 PM
Hello everyone,

I have a main server and I want to place it behind opnsense. My main server has virtual machines which have different wan ips.

I find transparent bridge mode is suitable for me. I followed this tutorial but it doesnt work. Any opinions?

My placement:

Wan: just empty wan
has no ip
no dhcp

Lan: just empty lan
has no ip
no dhcp

Bridge0 : wan,lan
has gateway and ip
no dhcp
I can access bridge0 opnsense panel from my browser

wan port<->opnsenser server<->lan port<-> main server

Firewall:

wan-> open any to any
lan-> lan to any open
bridge-> open any to any

outbound nat rule generation disabled
pfil.member 0
pfil.bridge 1