Define local network range for 'local access only' users

Installation
1

How do I define what my local network is?

Context: I access HA via Nabu and also via my local networks.

I have some local user accounts (children) that are locked down with ‘kiosk mode’. I only let these accounts log in via local network 192.168.99.* and 192.168.100.* and 192.168.101.*:

image

I am toying with using Tailscale - but ‘local access only’ users can’t login via tailscale.

How do I add the tailscale IP address range (100...* or 100.0.0.0/8) to the address range that HA counts as ‘local’

Thanks for any help