ZyXEL ZyWALL 2WG User Guide - Page 323
Authentication Server Screens
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CHAPTER 16 Authentication Server Screens 16.1 Overview This chapter discusses how to configure the ZyWALL's authentication server feature. A ZyWALL set to be a VPN extended authentication server can use either the local user database internal to the ZyWALL or an external RADIUS (Remote Authentication Dial In User Service, RFC 2138, 2139) server for an unlimited number of users. The ZyWALL uses the same local user database for VPN extended authentication. 16.1.1 What You Can Do in the Authentication Server Screens • Use the Local User Database Screen (Section 16.2 on page 324) to configure your ZyWALL's list of local user profiles. • Use the RADIUS Screen (Section 16.3 on page 326) to configure external RADIUS server settings. 16.1.2 What You Need To Know About Authentication Server Local User Database By storing user profiles locally on the ZyWALL, your ZyWALL is able to authenticate users without interacting with a network RADIUS server. However, there is a limit on the number of users you may authenticate in this way. RADIUS The ZyWALL can use a RADIUS server to authenticate an unlimited number of users. RADIUS is based on a client-server model that supports authentication, authorization and accounting. The access point is the client and the server is the RADIUS server. The RADIUS server handles the following tasks: • Authentication Determines the identity of the users. • Authorization Determines the network services available to authenticated users once they are connected to the network. • Accounting Keeps track of the client's network activity. RADIUS is a simple package exchange in which the ZyWALL acts as a message relay between the client and the network RADIUS server. ZyWALL 2 Plus User's Guide 323
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