A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Roaming Extensions for radius server
Author(s) : V. Gondi, N. Agoulmine
Filename : draft-gondi-radext-radius-roaming-00.txt
Pages : 15
Date : 2008-02-18
The functionalities of radius server can be extended to provide new
types of services for the users in Wireless and cellular network.
Traditionally Radius servers are limited to authentication, access
and accounting, there are few researchers proposing new extensions
to provide new functionalities for radius server in wireless and
cellular networks. In this draft we are proposing to extend the
functionalities of Radius to extend it to roaming and handover
support for the mobile terminals. Using this mechanism the mobile
terminal initially gets access to the network and then when there is
a possibility of handover and roaming with the other access
networks, mobile terminal communicates with the home radius server
and creates the pre authentication information. In this process
different mechanisms essential for roaming and handover are
addressed such as Network Selection, Handover Initiation, Security
Context Management, and Mobility Management. Using this mechanism
the latency for handover and roaming can be reduced with higher
level control mobility of the terminal during handover and roaming.
Conventions used in this document
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC-2119 Error!
Reference source not found..
Mobile Terminal (MT):
The user terminal which has the capability of mobility
traditionally a mobile phone or a laptop.
Network Selection (NS):
The process of identifying the best available network for
accessing a network.
Handover (HO):
Mechanism involving the authentication and access control of
the MT moving from one access network to another access
network or technology.
Security Configuration (SC):
Authentication and re-authentication management of the mobile
terminal in any access networks, in this draft context
management is proposed where the security credentials can be
transported to other mechanisms.
Mobility Management (MM)
In this mechanisms the mobility and session context management
can be achieved.
Extensible Authentication Protocol (EAP):
Extensible
Authentication
Protocol
is
a
universal
authentication framework frequently used in wireless networks
and Point-to-Point connections defined by RFC 3748.
Radius server:
Remote Authentication Dial In User Service (RADIUS) is an AAA
(authentication, authorization, and accounting) protocol for
controlling access to network resources.
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