xStack DGS-3400 Series Fast Ethernet Switch
Port Security
A given ports’ (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. To
view the following window, click
Security
> Port Security
.
Figure 8- 2. Port Security Settings and Table
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 the user to enable or disable Port Security
(locked MAC address table for the selected ports).
Max. Learning Addr. (0-16)
The number of MAC addresses that will be in the MAC address forwarding
table for the selected switch and group of ports.
Mode
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:
Permanent
– The locked addresses will only age out after the Switch has
been reset.
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 or rebooted.
Click
Apply
to implement changes made.
146
Summary of Contents for xStack DGS-3427
Page 213: ...202...
Page 224: ...213 D Link D Link D Link D Link 095 744 00 99 http www dlink ru email support dlink ru...
Page 227: ...216...
Page 243: ...232 Ver 1 00...
Page 246: ......
