Configuring Intrusion Protection - HPE FlexNetwork 7500 Series Security Configuration Manual

The NTK feature supports the following modes:
•
ntkonly—Forwards only unicast frames with authenticated destination MAC addresses.
•
ntk-withbroadcasts—Forwards only broadcast frames and unicast frames with authenticated
destination MAC addresses.
•
ntk-withmulticasts—Forwards only broadcast frames, multicast frames, and unicast frames
with authenticated destination MAC addresses.
The NTK feature drops any unicast frame with an unknown destination MAC address. Not all port
security modes support triggering the NTK feature. For more information, see
To configure the NTK feature:
Step
1. Enter system view.
2. Enter Layer 2 Ethernet
interface view.
3. Configure the NTK feature.

Configuring intrusion protection

Intrusion protection enables a device to take one of the following actions in response to illegal
frames:
•
blockmac—Adds the source MAC addresses of illegal frames to the blocked MAC address list
and discards the frames. All subsequent frames sourced from a blocked MAC address are
dropped. A blocked MAC address is restored to normal state after being blocked for 3 minutes.
The interval is fixed and cannot be changed.
•
disableport—Disables the port until you bring it up manually.
•
disableport-temporarily—Disables the port for a period of time. The period can be configured
with the port-security timer disableport command.
To configure the intrusion protection feature:
Step
1. Enter system view.
2. Enter Layer 2 Ethernet
interface view.
3. Configure the intrusion
protection feature.
4. Return to system view.
5. (Optional.) Set the silence
timeout period during which
a port remains disabled.
NOTE:
On a port operating in either macAddressElseUserLoginSecure mode or
macAddressElseUserLoginSecureExt mode, intrusion protection is triggered only after both MAC
authentication and 802.1X authentication fail for the same frame.
Command
system-view
interface interface-type
interface-number
port-security ntk-mode
{ ntk-withbroadcasts |
ntk-withmulticasts | ntkonly }
Command
system-view
interface interface-type
interface-number
port-security intrusion-mode
{ blockmac | disableport |
disableport-temporarily }
quit
port-security timer disableport
time-value
198
Table 14.
Remarks
N/A
N/A
By default, NTK is disabled on a
port and all frames are allowed to
be sent.
Remarks
N/A
N/A
By default, intrusion protection is
disabled.
N/A
By default, the port silence
timeout is 20 seconds.