Juniper JUNOS OS 10.3 - SOFTWARE Manual page 2704

Complete Software Guide for Junos
Specifying RADIUS Server Connections on an EX Series Switch (CLI Procedure)
2608
®
OS for EX Series Ethernet Switches, Release 10.3
IEEE 802.1X and MAC RADIUS authentication both provide network edge security,
protecting Ethernet LANs from unauthorized user access by blocking all traffic to and
from devices at the interface until the supplicant's credentials or MAC address are
presented and matched on the authentication server (a RADIUS server). When the
supplicant is authenticated, the switch stops blocking access and opens the interface
to the supplicant.
To use 802.1X or MAC RADIUS authentication, you must specify the connections on the
switch for each RADIUS server to which you will connect.
To configure a RADIUS server on the switch:
Define the IP address of the RADIUS server, the RADIUS server authentication port
1.
number, and the secret password. You can define more than one RADIUS server. The
secret password on the switch must match the secret password on the server:
[edit access]
user@switch# set radius-server 10.0.0.100 port 1812 secret abc
NOTE: Specifying the authentication port is optional, and port 1812 is the
default. However, we recommend that you configure it in order to avoid
confusion as some RADIUS servers might refer to an older default.
(Optional) Specify the IP address by which the switch is identified by the RADIUS
2.
server. If you do not specify this, the RADIUS server uses the address of the interface
sending the RADIUS request. We recommend that you specify this IP address because
if the request gets diverted on an alternate route to the RADIUS server, the interface
relaying the request might not be an interface on the switch.
[edit access]
user@switch# set access radius-erver source-address 10.93.14.100
Configure the authentication order, making
3.
[edit access]
user@switch# set profile profile1 authentication-order radius
Create a profile and specify the list of RADIUS servers to be associated with the profile.
4.
For example, you might choose to group your RADIUS servers geographically by city.
This feature enables easy modification whenever you want to change to a different
sent of authentication servers.
[edit access profile]
user@switch# set atlanta radius authentication-server 10.0.0.100 10.2.14.200
Specify the group of servers to be used for 802.1X or MAC RADIUS authentication by
5.
identifying the profile name:
[edit access profile]
user@switch# set protocols dot1x authenticator authentication-profile-name denver
the first method of authentication:
radius
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