If you still wish to use the Free Edition, you would have to ensure the VLANs you wish to monitor and the VLANs you do not wish to monitor are on separate physical interfaces. This may be an issue for you if you wish to run Zenarmor only on certain VLANs. In the Free Edition, you cannot exclude VLANs from being monitored if multiple VLANs are assigned to a single parent interface. Limitation of the Free Edition: When you monitor the parent interface, Zenarmor will monitor all VLANs associated to that interface.

Notice in the screenshot that I am selecting LAN rather than all of the VLANs associated to the physical interface “igb2”. If you do not select the physical interface(s), you may find that it will cause issues with your network. Zenarmor will be able to analyze all of the VLAN traffic when monitoring the parent interface. This is similar to Suricata where you should only select the physical interface(s). If you have multiple VLANs associated to a single physical interface, you should only select the physical parent interface. On the “Interface Selection” step during installation, you are prompted for the interfaces you wish to have Zenarmor monitor.

However, there is one consideration worth mentioning since I had an issue with this when I first installed Zenarmor. The installation process is pretty straightforward and well documented on Sunny Valley’s website so I do not wish to repeat the same information. If you decide to subscribe to the Home Edition after reading through this review, please use my referral link for a 10% discount on the first month or year of your subscription! Note that you can only get the discount if you have not yet signed up for the Zenconsole Cloud Portal even if you are using only the Free Edition.

Opnsense sensei