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To specify multiple RADIUS server hosts, configure the radius-server host command multiple times. If
multiple RADIUS server hosts are configured, FTOS attempts to connect with them in the order in which
they were configured. When FTOS attempts to authenticate a user, the software connects with the
RADIUS server hosts one at a time, until a RADIUS server host responds with an accept or reject
response.
If you want to change an optional parameter setting for a specific host, use the
radius-server host
command. To change the global communication settings to all RADIUS server hosts, refer to Set global
communication parameters for all RADIUS server hosts on page 930.
To view the RADIUS configuration, use the
show running-config radius command in the EXEC Privilege
mode.
To delete a RADIUS server host, use the
no radius-server host {hostname | ip-address} command.
Set global communication parameters for all RADIUS server hosts
You can configure global communication parameters (auth-port, key, retransmit, and timeout parameters)
and specific host communication parameters on the same system. However, if both global and specific host
parameters are configured, the specific host parameters override the global parameters for that RADIUS
server host.
To set global communication parameters for all RADIUS server hosts, use any or all of the following
commands in the CONFIGURATION mode:
Command Syntax Command Mode Purpose
radius-server deadtime seconds CONFIGURATION Set a time interval after which a RADIUS host
server is declared dead.
• seconds range: 0 to 2147483647.
Default: 0 seconds
radius-server key [encryption-type] key CONFIGURATION Configure a key for all RADIUS communications
between the system and RADIUS server hosts.
• encryption-type: Enter 7 to encrypt the
password. Enter 0 to keep the password as plain
text.
• key: Enter a string. The key can be up to 42
characters long. You cannot use spaces in the
key.
radius-server retransmit retries CONFIGURATION Configure the number of times FTOS retransmits
RADIUS requests.
• retries range: 0 to 100. Default is 3 retries.
radius-server timeout seconds CONFIGURATION Configure the time interval the system waits for a
RADIUS server host response.
• seconds range: 0 to 1000.
Default is 5 seconds.