UTM interface to connect to on-the-premises router (behind the firewall) with a WAN IP - Management, Networking, Logging and Reporting - UTM Firewall - Sophos Community
Amazon.com: Zyxel USG Flex 100W (USG40 v2), UTM Firewall Hardware Only, Recommended up to 25 Users, WiFi [USGFLEX100W] : Electronics