US Patent 12010141 System gateway while accessing protected non-web resources connected to internet

A technique to improve security for a VLAN is disclosed. A security appliance is set as the default gateway for intra-LAN communication. Message traffic is analyzed and anomalies are detected relative to normal message traffic that correspond to device health problems that may require service by a field technician. Access to a cloud-based resource may be further protected by enforcing user-based access policies.