Chapter, Configuration using the web-based utility, Security > port security – Linksys SLM248G4S (G5) User Manual

Page 35

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Chapter 

Configuration Using the Web-based Utility

29

24/48-Port 10/100 + 4-Port Ggabt Reslent Clusterng Smart Swtch wth 2 Combo SFPs

Enable Perodc Reauthentcaton

Select the checkbox

to permit periodic port reauthentication.

Settng Tmer

Click this button to open the Setting Timer

screen to configure ports for 802.1x functionality.

Update

If you click this button, your changes are saved

and appear immediately in the screen’s Table section.

Table

This part of the 802.1x Settings screen displays a summary

of the settings that appear in the Parameters section of the

screen. If you click More Detals, the settings described in

the “Setting Timer” section are added to the table.
Click Save Settngs to apply the changes, or Cancel

Changes to cancel the changes.

Setting Timer

The Setting Timer screen appears when you click Settng

Tmer on the 802.1x Settings screen. You use the Setting

Timer screen to configure a port’s 802.1x functionality.

Security > 802.1x Settings > Setting Timer

Port

Displays the port name.

Reauthentcaton Perod

Specifies

the

number

of seconds after which a connected client must be

reauthenticated. The range is 00 to 4294929

seconds. The default value is 00 seconds.

Quet Perod

Specifies the time that a switch port waits

after Max EAP Requests is exceeded before attempting

to acquire a new client. The range is 1 to  seconds.

The default is 0 seconds.

Resendng EAP

Specifies the time that the switch waits

for a response to an EAP request/identity frame from the

client before retransmitting an EAP packet. The range is 1

to  seconds. The default is 0 seconds.

Max EAP Requests

Specifies the maximum number

of times the switch port will retransmit an EAP request

packet to the client before it times out the authentication

session. The range is 1 to 10 times. The default is 2 retries.

Supplcant Tmeout

Displays the number of seconds that

lapses before EAP requests are resent to the supplicant. The

range is 1 to  seconds. The default is 0 seconds.

Server Tmeout

The number of seconds that lapses

before the switch resends a request to the authentication

server The range is 1 to . The default is 0 seconds.
Click Save to save your changes and leave the screen

open. Click Save & Close to save your changes and close

the screen. Click Close to close the screen without saving

your changes.

Security > Port Security

The Port Security screen is used to configure a port’s

security settings.

Security > Port Security

Network security can be increased by limiting access on

a specific port only to users with specific MAC addresses.

MAC addresses can be dynamically learned or statically

configured.
Locked port security monitors both received and learned

packets that are received on specific ports. Access to the

locked port is limited to users with specific MAC addresses.

These addresses are either manually defined on the port,

or learned on that port up to the point when it is locked.

When a packet is received on a locked port, and the

packet’s source MAC address is not tied to that port (either

it was learned on a different port, or it is unknown to the

system), the protection mechanism is invoked, and can

provide various options. Unauthorized packets arriving at

a locked port are either:

Forwarded
Discarded
Cause the port to be shut down

Locked port security also enables storing a list of MAC

addresses in the configuration file. The MAC address list

can be restored after the device has been reset.

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