Cisco 3845 Software Guide - Page 162

Secure Access Control Server Version 3.0, Livingston, Merit, Microsoft, or another software provider.

Page 162 highlights

Controlling Switch Access with RADIUS Chapter 8 Configuring Switch-Based Authentication The RADIUS host is normally a multiuser system running RADIUS server software from Cisco (Cisco Secure Access Control Server Version 3.0), Livingston, Merit, Microsoft, or another software provider. For more information, see the RADIUS server documentation. Use RADIUS in these network environments that require access security: • Networks with multiple-vendor access servers, each supporting RADIUS. For example, access servers from several vendors use a single RADIUS server-based security database. In an IP-based network with multiple vendors' access servers, dial-in users are authenticated through a RADIUS server that has been customized to work with the Kerberos security system. • Turnkey network security environments in which applications support the RADIUS protocol, such as in an access environment that uses a smart card access control system. In one case, RADIUS has been used with Enigma's security cards to validates users and to grant access to network resources. • Networks already using RADIUS. You can add a Cisco switch containing a RADIUS client to the network. This might be the first step when you make a transition to a TACACS+ server. See Figure 8-2 on page 8-18. • Network in which the user must only access a single service. Using RADIUS, you can control user access to a single host, to a single utility such as Telnet, or to the network through a protocol. • Networks that require resource accounting. You can use RADIUS accounting independently of RADIUS authentication or authorization. The RADIUS accounting functions allow data to be sent at the start and end of services, showing the amount of resources (such as time, packets, bytes, and so forth) used during the session. An Internet service provider might use a freeware-based version of RADIUS access control and accounting software to meet special security and billing needs. RADIUS is not suitable in these network security situations: • Multiprotocol access environments. RADIUS does not support AppleTalk Remote Access (ARA), NetBIOS Frame Control Protocol (NBFCP), NetWare Asynchronous Services Interface (NASI), or X.25 PAD connections. • Switch-to-switch or router-to-router situations. RADIUS does not provide two-way authentication. RADIUS can be used to authenticate from one device to a non-Cisco device if the non-Cisco device requires authentication. • Networks using a variety of services. RADIUS generally binds a user to one service model. Figure 8-2 Transitioning from RADIUS to TACACS+ Services R1 RADIUS server R2 RADIUS server Remote PC T1 TACACS+ server T2 TACACS+ server 86891 8-18 Cisco ME 3800X and 3600X Switch Software Configuration Guide Workstation OL-23400-01

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8-18
Cisco ME 3800X and 3600X Switch Software Configuration Guide
OL-23400-01
Chapter 8
Configuring Switch-Based Authentication
Controlling Switch Access with RADIUS
The RADIUS host is normally a multiuser system running RADIUS server software from Cisco (Cisco
Secure Access Control Server Version 3.0), Livingston, Merit, Microsoft, or another software provider.
For more information, see the RADIUS server documentation.
Use RADIUS in these network environments that require access security:
Networks with multiple-vendor access servers, each supporting RADIUS. For example, access
servers from several vendors use a single RADIUS server-based security database. In an IP-based
network with multiple vendors’ access servers, dial-in users are authenticated through a RADIUS
server that has been customized to work with the Kerberos security system.
Turnkey network security environments in which applications support the RADIUS protocol, such
as in an access environment that uses a
smart card
access control system. In one case, RADIUS has
been used with Enigma’s security cards to validates users and to grant access to network resources.
Networks already using RADIUS. You can add a Cisco switch containing a RADIUS client to the
network. This might be the first step when you make a transition to a TACACS+ server. See
Figure 8-2 on page 8-18
.
Network in which the user must only access a single service. Using RADIUS, you can control user
access to a single host, to a single utility such as Telnet, or to the network through a protocol.
Networks that require resource accounting. You can use RADIUS accounting independently of
RADIUS authentication or authorization. The RADIUS accounting functions allow data to be sent
at the start and end of services, showing the amount of resources (such as time, packets, bytes, and
so forth) used during the session. An Internet service provider might use a freeware-based version
of RADIUS access control and accounting software to meet special security and billing needs.
RADIUS is not suitable in these network security situations:
Multiprotocol access environments. RADIUS does not support AppleTalk Remote Access (ARA),
NetBIOS Frame Control Protocol (NBFCP), NetWare Asynchronous Services Interface (NASI), or
X.25 PAD connections.
Switch-to-switch or router-to-router situations. RADIUS does not provide two-way authentication.
RADIUS can be used to authenticate from one device to a non-Cisco device if the non-Cisco device
requires authentication.
Networks using a variety of services. RADIUS generally binds a user to one service model.
Figure 8-2
Transitioning from RADIUS to TACACS+ Services
86891
RADIUS
server
RADIUS
server
TACACS+
server
TACACS+
server
R1
R2
T1
T2
Remote
PC
Workstation