pfSense

I have a Netgate 2100 that is set up with an OpenVPN server. I can readily connect to it remotely with the SparkLabs Viscosity client. When I define a VPN interface, however, in Interfaces → Interface Assignments, where it looks like this,

(see attached screenshot)

and I enable that interface, all access to the Netgate itself is blocked. This is also not a matter of having Allow firewall rules for the new interface. They do not help.

What’s more, simply disabling the new interface does not bring back access to the Netgate. I have to restore settings from a backup of the state the settings were in, before I made that change in Interfaces → Interface Assignments.

However, rebooting the appliance returns full OpenVPN functionality. It’s just that with it gone initially, I cannot reboot the appliance. I have to be local to do so.