Cisco Systems 3750E manual Configure terminal, Aaa group server radius group-name

Chapter 9 Configuring Switch-Based Authentication

Controlling Switch Access with RADIUS

Beginning in privileged EXEC mode, follow these steps to define the AAA server group and associate a particular RADIUS server with it:

	Command	Purpose
Step 1
	configure terminal	Enter global configuration mode.
Step 2
	radius-server host {hostname	Specify the IP address or hostname of the remote RADIUS server host.
	ip-address}[auth-portport-number]	• (Optional) For auth-portport-number, specify the UDP destination
	[acct-port port-number] [timeout
		port for authentication requests.
	seconds] [retransmit retries] [key
		• (Optional) For acct-portport-number, specify the UDP destination
	string]
		port for accounting requests.
		• (Optional) For timeout seconds, specify the time interval that the
		switch waits for the RADIUS server to reply before resending. The
		range is 1 to 1000. This setting overrides the radius-server timeout
		global configuration command setting. If no timeout is set with the
		radius-server host command, the setting of the radius-server
		timeout command is used.
		• (Optional) For retransmit retries, specify the number of times a
		RADIUS request is resent to a server if that server is not responding
		or responding slowly. The range is 1 to 1000. If no retransmit value is
		set with the radius-server host command, the setting of the
		radius-server retransmit global configuration command is used.
		• (Optional) For key string, specify the authentication and encryption
		key used between the switch and the RADIUS daemon running on the
		RADIUS server.
		Note The key is a text string that must match the encryption key used
		on the RADIUS server. Always configure the key as the last item
		in the radius-server host command. Leading spaces are ignored,
		but spaces within and at the end of the key are used. If you use
		spaces in your key, do not enclose the key in quotation marks
		unless the quotation marks are part of the key.
		To configure the switch to recognize more than one host entry associated
		with a single IP address, enter this command as many times as necessary,
		making sure that each UDP port number is different. The switch software
		searches for hosts in the order in which you specify them. Set the timeout,
		retransmit, and encryption key values to use with the specific RADIUS
		host.
Step 3
	aaa new-model	Enable AAA.
Step 4
	aaa group server radius group-name	Define the AAA server-group with a group name.
		This command puts the switch in a server group configuration mode.
Step 5
	server ip-address	Associate a particular RADIUS server with the defined server group.
		Repeat this step for each RADIUS server in the AAA server group.
		Each server in the group must be previously defined in Step 2.
Step 6
	end	Return to privileged EXEC mode.
Step 7
	show running-config	Verify your entries.

Catalyst 3750-E and 3560-E Switch Software Configuration Guide

9-26 OL-9775-02