Cisco Nexus 5000 Series - Configuring Radius; Information about Radius; Radius Network Environments

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Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
OL-16597-01
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Configuring RADIUS
This chapter describes how to configure Remote Access Dial-In User Service (RADIUS) protocol on the
Nexus 5000 Series switch.
This chapter includes the following sections:
• Information About RADIUS, page 1-1
• Prerequisites for RADIUS, page 1-4
• Guidelines and Limitations, page 1-4
• Configuring RADIUS Servers, page 1-4
• The following example shows how to manually send a test message to a RADIUS server:, page 1-14
• Displaying RADIUS Server Statistics, page 1-14
• Example RADIUS Configuration, page 1-15
• Default Settings, page 1-15
Information About RADIUS
The RADIUS distributed client/server system allows you to secure networks against unauthorized
access. In the Cisco implementation, RADIUS clients run on the Nexus 5000 Series of switches and send
authentication and accounting requests to a central RADIUS server that contains all user authentication
and network service access information.
This section includes the following topics:
• RADIUS Network Environments, page 1-1
• RADIUS Operation, page 1-2
• Vendor-Specific Attributes, page 1-3
RADIUS Network Environments
RADIUS can be implemented in a variety of network environments that require high levels of security
while maintaining network access for remote users.