Method, a network access server, an...

Details Method, a network access server, an... Method, a network access server, an...

2003-05-19

2009-11-24

Lanier, Benjamin E (Department: 2432)

Information security

Access control or authentication

Network

C726S004000, C726S012000, C726S015000

Reexamination Certificate

active

07624429

ABSTRACT:
The invention relates to providing network access to separate virtual private network. It relates to a method for proxying user authentication-authorization-and-accounting messages via a network access server (NAS) and at least two separated virtual private networks (VPNs), wherein a first VPN has it's own first authentication-authorization-and-accounting server (AAA server), and a second VPN has it's own second AAA server, comprising the steps of:said NAS D2invokes (2) said first AAA server D7for a user authentication-authorization-and-accounting and when said first AAA server D7is not responsible for the user authentication-authorization-and-accounting,said first AAA server D7partly steers the NAS D2operation and identifying a configuration for a responsible second AAA server D8, if this information is available and if no information is available, forcing said NAS D2to select or identify a configuration for the responsible second AAA server D8andsaid NAS D2invokes said second AAA server D8, based on the said configuration, andthis second AAA server D8performs a real user authentication-authorization-and-accounting and a decisive steering of the NAS operation (5).Further it relates to a network access server, an authentication-authorization-and-accounting server, and computer software products for proxying user authentication-authorization-and-accounting messages via a network access server.

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RFC 2903 (Aug. 2000).
Gleeson B. et al., RFC 2764—A Framework for IP Based Virtual Private Networks, Feb. 2000, Networking Group, pp. 6-9.

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