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Catalyst 2950 Desktop Switch Software Configuration Guide
78-11380-03
Chapter 6 Configuring the System
Controlling Switch Access with RADIUS
Beginning in privileged EXEC mode, follow these steps to configure per-server RADIUS server
communication. This procedure is required.
To remove the specified RADIUS server, use the no radius-server host hostname | ip-address global
configuration command.
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
radius-server host {hostname |
ip-address}[auth-port port-number]
[acct-port port-number][timeout
seconds][retransmit retries][key
string]
Specify the IP address or host name of the remote RADIUS server host.
• (Optional) For auth-port port-number, specify the UDP destination
port for authentication requests.
• (Optional) For acct-port port-number, specify the UDP destination
port for accounting requests.
• (Optional) For timeout seconds, specify the time interval that the
switch waits for the RADIUS server to reply before retransmitting.
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, the setting of the radius-server timeout
global configuration 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
keyusedbetweentheswitchandtheRADIUSdaemonrunningonthe
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
end Return to privileged EXEC mode.
Step 4
show running-config Verify your entries.
Step 5
copy running-config startup-config (Optional) Save your entries in the configuration file.
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