Input based on Tailscale interface


I’m struggling to create a new input based on Tailscale interface.

Here are the system interfaces:

All inputs that I have are based on the default interface and different ports.
Recently I decided to try Tailscale to forward logs from Synology NAS. Of course NAS is accessible through Tailscale and can even ping the Graylog Tailscale IP

When creating a new input for this interface I went through lot of different settings, but can’t force it to work…