Issues with setting up a monitoring network interface.

[0x4ndy]

I've been trying to setup Security Onion 2.3.130 in Standalone mode. I've successfully run the configuration for the management interface, but I'm having issues setting up the monitoring one. I'm getting the following error:

After that, the configuration wizard exists, so I can never finish the installation.
Could you please give me some hints on how to proceed with this issue? Thanks in advance!

[rh-ops]

2.3 is no longer supported. Please consider upgrading to the latest version 2.4.111.

[0x4ndy]

I don't think 2.3 is a problem. But ok, I'm gonna try to setup 2.4, I hope it works on OpenNebula.