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URL: http://www.ietf.org/rfc/rfc2888.txt
Keywords:
L2TP protocol is a virtual extension of PPP across IP network
infrastructure. L2TP makes possible for an access concentrator (LAC) to be near
remote clients, while allowing PPP termination server (LNS) to be located in
enterprise premises. L2TP allows an enterprise to retain control of RADIUS
database, which is used to control Authentication, Authorization
and Accountability (AAA) of dial-in users. The objective of this document is to
extend security characteristics of IPsec to remote access users, as they
dial-in through the Internet. This is accomplished without creating new
protocols and using the existing practices of Remote Access and IPsec.
Specifically, the document proposes three new RADIUS parameters for use by the
LNS node, acting as Secure Remote Access Server (SRAS) to mandate network level
security between remote clients and the enterprise. The document also discusses
limitations of the approach.
Keywords:
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