Command Line Reference Guide

the timeout, retransmit, or key values, include those keywords when using the
no radius-server host command syntax.
You can use duplicate host names or IP addresses among RADIUS groups.
However, you cannot use duplicate host names or IP addresses within the same
RADIUS group. If a VRF is not configured on the RADIUS group, then servers
configured in the group are considered to be on the default VRF. RADIUS servers
that are configured in the CONFIGURATION mode are also considered to be on
the default VRF.
You must configure the RADIUS group explicitly with the aaa radius group
command in order for the AAA servers to use the group of RADIUS servers. The
802.1x servers use the group of RADIUS servers based on the VRF where the 802.1x
request is received. As a result, it is possible that both globally configured RADIUS
servers as well as the group-configured RADIUS servers (without VRF or default
VRF) are used for processing the 802.1x requests that are received at the default
VRF. The order in which the RADIUS servers are tried depends on the order in
which the RADIUS servers are configured.
Example
Dell(conf)#radius-server group group1
Dell(conf-radius-group)#radius-server host 1.1.1.1 key secret
Dell(conf-radius-group)#no radius-server host 1.1.1.1
Related
Commands
login authentication — sets the database to be checked when a user logs in.
radius-server key — sets an authentication key for RADIUS communications.
radius-server retransmit — sets the number of times the RADIUS server attempts to
send information.
radius-server timeout — sets the time interval before the RADIUS server times out.
radius-server key
Configure a key for all RADIUS communications between the switch and the RADIUS host server.
Z9000
Syntax
radius-server key [encryption-type] key
To delete a password, use the no radius-server key command.
Parameters
encryption-
type
(OPTIONAL) Enter either zero (0) or 7 as the encryption type
for the key entered. The options are:
• 0 is the default and means the key is not encrypted and
stored as clear text.
• 7 means that the key is encrypted and hidden.
Security
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