US Patent Issued to Palo Alto Networks on Sept. 8 for "Supporting zone-based policy enforcement for a firewall connected to a one-arm load balancer" (British, American Inventors)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,732,481, issued on Sept. 8, was assigned to Palo Alto Networks Inc. (Santa Clara, Calif.).

"Supporting zone-based policy enforcement for a firewall connected to a one-arm load balancer" was invented by Charles Bransi (Palo Alto, Calif.) and Steven Alsop (Coventry, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A virtual firewall configured with two interfaces assigned different security zones switches between Layer 3 routing and bump-in-the-wire (BITW) modes between sessions. After receiving a packet from a one-arm load balancer, an inner header is determined based on decapsulation which removes an outer header. A route lookup is performed...