Panasonic NN46110-600 - Manual (Page 25)

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Chapter 1
Authentication services
The remote user attempting to dial in to the VPN Router must be authenticated
before gaining access to the corporate network. Authentication is one of the most
important functions that the VPN Router provides because it identifies users and
drives many other aspects of the user-centric functionality.
For authentication and access control, the VPN Router supports an internal or
external Lightweight Directory Access Protocol (LDAP) server and external
Remote Authentication Dial-In User Services (RADIUS) servers. External LDAP
proxy server support allows authentication of users against existing LDAP
databases.
Figure 1 shows how users are authenticated.
Figure 1 Authenticating users
The VPN Router uses a group profile mechanism to augment support for several
authentication services. When a remote user attempts to access the network, the
VPN Router references a particular group profile to determine encryption
strength, filtering profile, and quality of service attributes for that user.
Nortel VPN Router Security — Servers, Authentication, and Certificates