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Cisco Catalyst Blade Switch 3020 for HP Software Configuration Guide
OL-8915-03
Chapter 8 Configuring IEEE 802.1x Port-Based Authentication
Configuring IEEE 802.1x Authentication
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
fail-over 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.
To delete the specified RADIUS server, use the
no radius-server host
{
hostname
|
ip-address
} global
configuration command.
This example shows how to specify the server with IP address 172.20.39.46 as the RADIUS server, to
use port 1612 as the authorization port, and to set the encryption key to
rad123
, matching the key on the
RADIUS server:
Switch(config)#
radius-server host 172.l20.39.46 auth-port 6403 key rad123
You can globally configure the timeout, retransmission, and encryption key values for all RADIUS
servers by using the
radius-server host
global configuration command. If you want to configure these
options on a per-server basis, use the
radius-server timeout
,
radius-server retransmit
, and the
radius-server key
global configuration commands. For more information, see the
“Configuring Settings
for All RADIUS Servers” section on page 7-29
.
You also need to configure some settings on the RADIUS server. These settings include the IP address
of the switch and the key string to be shared by both the server and the switch. For more information,
see the RADIUS server documentation.
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
radius-server host
{
hostname
|
ip-address
}
auth-port
port-number
key
string
Configure the RADIUS server parameters.
For
hostname
|
ip-address,
specify the hostname or IP address of the
remote RADIUS server.
For
auth-port
port-number
, specify the UDP destination port for
authentication requests. The default is 1812. The range is 0 to 65536.
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.
If you want to use multiple RADIUS servers, re-enter this command.
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.
