Configuring Port Security; Port Security Features; Port Security Modes - HP 10500 Series Configuration Manual

Configuring port security

Port security combines and extends 802.1X and MAC authentication to provide MAC-based network
access control. It applies to networks that require different authentication methods for different users on
a port, such as a WLAN.
Port security prevents unauthorized access to a network by checking the source MAC address of inbound
traffic and prevents access to unauthorized devices by checking the destination MAC address of
outbound traffic.
Port security can control MAC address learning and authentication on a port to make sure the port learns
only source trusted MAC addresses.
A frame is illegal if its source MAC address cannot be learned in a port security mode or if it is from a
client that has failed 802.1X or MAC authentication. The port security feature automatically takes a
pre-defined action on illegal frames. This automatic mechanism enhances network security and reduces
human intervention.
NOTE:
For scenarios that require only 802.1X authentication or MAC authentication, HP recommends that you
use the 802.1X authentication or MAC authentication feature rather than port security. For more
information about 802.1X and MAC authentication, see
authentication

Port security features

Port security supports need to know (NTK), intrusion protection, and port security traps.
NTK
The NTK feature prevents traffic interception by checking the destination MAC address in the outbound
frames. The feature makes sure that frames are sent only to hosts that have passed authentication or
whose MAC addresses have been learned or configured on the access device.
Intrusion protection
The intrusion protection feature examines the source MAC address in inbound frames for illegal frames
and takes a pre-defined action on each detected illegal frame. The action can be disabling the port
temporarily, disabling the port permanently, or blocking frames from the illegal MAC address for 3
minutes (not user configurable).
Port security traps
Configure the port security module to send traps for port security events such as login, logoff, and MAC
authentication to monitor user behavior.

Port security modes

Port security supports the following categories of security mode:
.
"
"Configuring
166
802.1X" and "Configuring MAC