Allied Telesis AT-S63 - Manual (Page 354)

Chapter 24: Denial of Service Defense
354 Section IV: Security
8. Adjust the settings as needed. The parameters are described below.
Status
Click Enable or Disable to enable or disable DoS on the selected
ports.
Action
The action a port takes when an intruder packet is received.
Although five possible selections are shown in the Action list box,
they all do the same thing: block the packet, record the event, and
drop the packet.
Mirror Port
This option applies to the Land, Tear Drop, Ping of Death, and IP
Options. You can use this option to copy offending traffic to
another port on the switch. You can specify only one mirror port.
Specifying a mirror port is not required.
9. Click Apply.
The defense is immediately activated on the ports.
10. To permanently save the change, return to the General tab on the
System page and click Save Changes.
For more information about what the Save Changes button does,
refer to ”Saving Your Parameter Changes” on page 36.