A perpetual lifetime license for users across anywhere on your network and must be used in addition to per switch Routing OS licenses. Each unit is a license for 1000 subscribers, with a dual IPv4 and IPv6 stack. It must be purchased with a software support option. ESSENTIALS feature-set: includes core routing and standard BNG features BENEFITS feature-set: includes Essentials features plus support for multiple queues per subscriber and High Availability features Select your feature-set package below.