Port Security - D-Link xStack User Manual

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Port Security

A given port's (or a range of ports') dynamic
MAC address learning can be locked such
that the current source MAC addresses
entered into the MAC address forwarding
table can not be changed once the port lock is
enabled. The port can be locked by using the
Admin State pull-down menu to Enabled,
and clicking Apply.
Port Security is a security feature that
prevents unauthorized
source MAC addresses) unknown to the
Switch prior to locking the port (or ports)
from connecting to the Switch's locked ports
and gaining access to the network.
To view this window, click Security > Port
Security > Port Security Entries, as shown
below:
The following parameters can be set:
Parameter
Unit
From/To
Admin State
Max. Learning Addr. (0-16)
Mode
®
DGS-3400 Series Layer 2 Gigabit Ethernet Managed Switch
NOTE: Ports that are in Shutdown (Forever) mode will be seen as link
down in all windows and screens until the user recovers these ports.
computers (with
Description
Choose the Switch ID number of the Switch in the switch stack to be modified.
A consecutive group of ports may be configured starting with the selected port.
This pull-down menu allows the user to enable or disable Port Security (locked MAC
address table for the selected ports).
The number of MAC addresses that will be in the MAC address forwarding table for the
selected switch and group of ports.
This pull-down menu allows the option of how the MAC address table locking will be
implemented on the Switch, for the selected group of ports. The options are:
Figure 6 - 3 Port Security Settings and Table
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