Use SOPHOS SG 430 Management Port?

[gothbert]

Hi,

I bought a used SOPHOS SG 430 Firewall Appliance and replaced the SOPHOS operating system by OPNSense 24.1. This runs all fine, including the LCD.

But I cannot use the MGMT ethernet port. It does not appear in the devices list (dmesg) and I also cannot access it via its default IP address 10.0.1.1 (https://10.0.1.1:4444). I did not find a mentioning of the management port in the web other than on the SOPHOS help page.

Any hints?

Kind regards
Boris

[gothbert]

I found the answer myself.

The MGMT port is connected to the board´s BMC and thus cannot appear as a network interface under OPNSense.

Here is the link to guide other people who come across the same topic: https://support.sophos.com/support/s/article/KBA-000009496?language=en_US