Bay Networks Remote Annex Manuel d'utilisateur télécharger pdf (Page 3)

Configuring the Nortel Networks Remote Access Concentrators and the DMS-10 for Remote Access.March 31, 1999 3

FIGURE 1. Typical Co Internet application

The RAC provides only a limited security for the incoming calls. It is recommended that

a RADIUS (Remote Access Dial In User Service) Security be set up to control access to

the customers network. Another option is to use Bay’s Access Control Protocol security

using Windows NT or a UNIX server. In either case these devices provide excellent secu-

rity allowing a central data base for controlling access as well as logging access. RADIUS

is recommended since it is considered an industry standard for dial in security.

In order to download the operating software into the RAC, a Windows NT PC will provide

the required file service. The RAC will boot off it’s own image if necessary, but it is rec-

ommended that a external server be provided so that the software can be upgraded when

required. The RAC can also use a UNIX device running TFTP for a boot device. The

UNIX solution will not be covered in this document.

ISDN

Terminal Adapter

V.90

Modem

DMS-10

RAC

PRI or

T1 Trunk

Ethernet

10BaseT

Windows NT

Boot Server

RADIUS

Authentication Server

Router

Internet

5399 or 8000

Intranet

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Bay Networks Remote Annex Manuel d'utilisateur Page 3