Allied Telesis AT-S63 - Manual (Page 216)

Chapter 16: Denial of Service Defense
216 Section II: Advanced Operations
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.
This option applies only to the IP Options defense.
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. From the Configuration menu, select the Save Config option to
permanently save your changes. (This option is not displayed if there
are no changes to save.)