# Allowing Incoming Connections From Public Networks Using Port 1947

The Run-time Environment Installer adds a firewall rule named “Sentinel License Manager” that allowed incoming connections from private networks using port 1947.

You can manually allow access from public networks using this port, but Thales highly recommends against this.

If you do plan to allow incoming connections from public networks using port 1947, create a rule with a different name in order to prevent future RTE upgrades from removing this access.