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Manage Device Security
252
Insight Managed 28-Port and 52-Port Gigabit Ethernet Smart Cloud Switches
RADIUS Overview
RADIUS servers provide additional security for networks. The RADIUS server maintains a
user database, which contains per-user authentication information. The switch passes
information to the configured RADIUS server, which can authenticate a user name and
password before authorizing use of the network. RADIUS servers provide a centralized
authentication method for the following:
• Web access
• Access control port (802.1X)
Configure the Global RADIUS Server Settings
Use the Global Configuration page to add information about one or more RADIUS servers on
the network.
Consider the maximum delay time when you are configuring RADIUS maximum retransmit
and RADIUS time-out values. If multiple RADIUS servers are configured, the maximum
retransmit period on each server runs out before the next server is attempted. A retransmit
does not occur until the configured time-out period on that server passes without a response
from the RADIUS server. Therefore, the maximum delay in receiving a response from the
RADIUS application equals the retransmit time x time-out period for all configured servers. If
the RADIUS request was generated by a user login attempt, all user interfaces are blocked
until the RADIUS application returns a response.
 To configure the global RADIUS server settings:
1. Connect your computer to the same network as the switch.
You can use a WiFi or wired connection to connect your computer to the network, or
connect directly to a switch that is off-network using an Ethernet cable.
2. Launch a web browser.
3. In the address field of your web browser, enter the IP address of the switch.
If you do not know the IP address of the switch, see Access the Switch on page 13.
The login window opens.
4. Enter the switch’s password in the password field.
The default password is password. If you added the switch to a network on the Insight
app before and you did not yet change the password through the local browser interface,
enter your Insight network password.
The System Information page displays.
5. Select Security > Management Security > RADIUS > Global Configuration.
The RADIUS Configuration page displays.
The Current Server IP Address field is blank if no servers are configured (see Configure a
RADIUS Authentication Server on the Switch on page 254). The switch supports up to
three RADIUS servers. If more than one RADIUS server is configured, the current server
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