Wireless Roaming Environment Overview
In a roaming wireless environment, subscribers can log in to a wireless access point at a variety of wireless locations owned by service providers that participate in a roaming network agreement. The wireless locations participating in the agreement can be owned by one or more service providers.
Typically, RADIUS manages information about subscribers between the wireless locations. A RADIUS server for an Internet service provider (ISP) manages authentication for its subscribers, and shares information with the other ISPs with which the service provider has a roaming agreement. Subscribers can log in to a service activation engine (SAE) from any supported site.
The SAE provides support for RADIUS vendor-specific attributes for wireless Internet service provider roaming (WISPr).