Configuring Radius; About Radius; Radius Network Environments - Cisco Nexus 9000 Series Configuration Manual

Configuring RADIUS

This chapter describes how to configure the Remote Access Dial-In User Service (RADIUS) protocol on
Cisco NX-OS devices.
This chapter includes the following sections:
•
•
•
•
•
•
•
•
•
•
•
•

About RADIUS

The RADIUS distributed client/server system allows you to secure networks against unauthorized access. In
the Cisco implementation, RADIUS clients run on Cisco NX-OS devices and send authentication and accounting
requests to a central RADIUS server that contains all user authentication and network service access information.

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.
You can use RADIUS in the following network environments that require access security:
• Networks with multiple-vendor network devices, each supporting RADIUS. For example, network
• Networks already using RADIUS. You can add a Cisco NX-OS device with RADIUS to the network.
About RADIUS, on page 39
Licensing Requirements for RADIUS, on page 42
Prerequisites for RADIUS, on page 42
Guidelines and Limitations for RADIUS, on page 42
Default Settings for RADIUS, on page 43
Configuring RADIUS Servers, on page 43
Verifying the RADIUS Configuration, on page 62
Monitoring RADIUS Servers, on page 63
Clearing RADIUS Server Statistics, on page 63
Configuration Example for RADIUS, on page 64
Where to Go Next , on page 64
Additional References for RADIUS, on page 64
devices from several vendors can use a single RADIUS server-based security database.
This action might be the first step when you make a transition to a AAA server.
Cisco Nexus 9000 Series NX-OS Security Configuration Guide, Release 9.x
4
C H A P T E R
39