D-Link xStack DXS-3350SR Installation & User Manual - Port Security
DXS-3350SR Gigabit Layer 3 Switch
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 computers (with 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.
Figure 6- 39. Port Security Settings window
The following parameters can be set:
Parameter Description
From/To
A consecutive group of ports may be configured starting with the selected port.
Admin State
This pull-down menu allows you to enable or disable Port Security (locked MAC address
table for the selected ports).
Max. Learning Addr.
(0-64)
The number of MAC addresses that will be in the MAC address forwarding table for the
selected Switch and group of ports.
Lock Address Mode
This pull-down menu allows you to select how the MAC address table locking will be
implemented on the Switch, for the selected group of ports. The options are:
Permanent – The locked addresses will not age out after the aging timer expires.
DeleteOnTimeout – The locked addresses will age out after the aging timer expires.
DeleteOnReset – The locked addresses will not age out until the Switch has been reset.
Click Apply to implement changes made.
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