http://www.rfc-editor.org/rfc/rfc2477.txt
RFC 2477: Criteria for Evaluating Roaming Protocols, B. Aboba, G. Zorn1999-01-01T23:00:00-00:00This document describes requirements for the provisioning of "roaming capability" for dialup Internet users. "Roaming capability" is defined as the ability to use multiple Internet service providers (ISPs), while maintaining a formal, customer-vendor relationship with only one. This memo provides information for the Internet community.