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## Overview of a Wireless Roaming Environment

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 an SAE from any supported site.

The SAE provides support for RADIUS vendor-specific attributes for wireless Internet service provider roaming (WISPr).

#### Related Topics

- Subscriber Access in a Wireless Roaming Environment
- Configuring Subscriber Access for a Wireless Location
- For more information RADIUS vendor-specific attributes for wireless Internet service provider roaming (WISPr): http://www.wi-fialliance.org/opensection/wispr.asp

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