HP 6125G Configuration Manual page 124

MAC learning control—Includes two modes, autoLearn and secure. MAC address learning is
•
permitted on a port in autoLearn mode and disabled in secure mode.
Authentication—Security modes in this category implement MAC authentication, 802.1X
•
authentication, or a combination of these two authentication methods.
Upon receiving a frame, the port in a security mode searches the MAC address table for the source MAC
address. If a match is found, the port forwards the frame. If no match is found, the port learns the MAC
address or performs authentication, depending on the security mode. If the frame is illegal, the port takes
the pre-defined NTK, intrusion protection, or trapping action.
The maximum number of users a port supports equals the maximum number of MAC addresses that port
security allows or the maximum number of concurrent users the authentication mode in use allows,
whichever is smaller. For example, if 802.1X allows more concurrent users than port security's limit on the
number of MAC addresses on the port in userLoginSecureExt mode, port security's limit takes effect.
Table 8 describes the port security modes and the security features.
Table 8 Port security modes
Purpose
Turning off the port security
feature
Controlling MAC address
learning
Performing 802.1X
authentication
Performing MAC authentication
Performing a combination of
MAC authentication and
802.1X authentication
TIP:
•
userLogin specifies 802.1X authentication and port-based access control.
•
macAddress specifies MAC authentication.
•
Else specifies that the authentication method before Else is applied first. If the authentication fails, whether to turn
to the authentication method following Else depends on the protocol type of the authentication request.
•
Typically, in a security mode with Or, the authentication method to be used depends on the protocol type of the
authentication request.
•
userLogin with Secure specifies 802.1X authentication and MAC-based access control.
•
Ext indicates allowing multiple 802.1X users to be authenticated and serviced at the same time. A security mode
without Ext allows only one user to pass 802.1X authentication.
Security mode
noRestrictions (the default mode)
In this mode, port security is disabled on the port
and access to the port is not restricted.
autoLearn
secure
userLogin
userLoginSecure
userLoginSecureExt
userLoginWithOUI
macAddressWithRadius
macAddressOrUserLoginSecure
Or
macAddressOrUserLoginSecureExt
macAddressElseUserLoginSecure
Else
macAddressElseUserLoginSecureExt
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Features that can be
triggered
N/A
NTK/intrusion
protection
N/A
NTK/intrusion
protection
NTK/intrusion
protection
NTK/intrusion
protection