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Configuring the Cisco Gigabit EtherSwitch EHWIC

How to Configure Gigabit EtherSwitch EHWICs

Configuring the Cisco Gigabit EtherSwitch EHWIC

OL-23155-01

Configuring the Switch-to-RADIUS-Server Communication

RADIUS security servers are identified by their host name or IP address, host name and specific UDP

port numbers, or IP address and specific UDP port numbers. The combination of the IP address and UDP

port number creates a unique identifier, which enables RADIUS requests to be sent to multiple UDP

ports on a server at the same IP address. If two different host entries on the same RADIUS server are

configured for the same service—for example, authentication—the second host entry configured acts as

the failover backup to the first one. The RADIUS host entries are tried in the order that they were

configured.

Beginning in privileged EXEC mode, follow these steps to configure the RADIUS server parameters on

the switch. This procedure is required.

SUMMARY STEPS

1. configure terminal

2. radius-server host {hostname | ip-address} auth-port port-number key string

3. end

4. show running-config

DETAILED STEPS

Command Purpose

Step 1

configure terminal

Example:

Router#configure terminal

Enters global configuration mode.

Step 2

radius-server host {hostname |

ip-address} auth-port

port-number key string

Example:

Router(config)#radius-server

host {hostname | ip-address}

auth-port port-number key

string

Configures the RADIUS server parameters on the switch.

For hostname | ip-address, specify the host name or IP address of the remote

RADIUS server.

For auth-port port-number, specify the UDP destination port for authentication

requests. The default is 1645.

For key string, specify the authentication and encryption key used between the

switch and the RADIUS daemon running on the RADIUS server. The key is a

text string that must match the encryption key used on the RADIUS server.

Note Always configure the key as the last item in the radius-server host

command syntax because leading spaces are ignored, but spaces within

and at the end of the key are used. If you use spaces in the key, do not

enclose the key in quotation marks unless the quotation marks are part of

the key. This key must match the encryption used on the RADIUS

daemon.

To use multiple RADIUS servers, repeat this command.

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 89 90

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