Chapter 9
| General Security Measures
Network Access (MAC Address Authentication)
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Command Mode
Interface Configuration
Command Usage
The maximum number of MAC addresses per port is 1024, and the maximum
number of secure MAC addresses supported for the switch system is 1024. When
the limit is reached, all new MAC addresses are treated as authentication failures.
Example
Console(config-if)#network-access max-mac-count 5
Console(config-if)#
network-access mode
mac-authentication
Use this command to enable network access authentication on a port. Use the
no
form of this command to disable network access authentication.
Syntax
[
no
]
network-access mode mac-authentication
Default Setting
Disabled
Command Mode
Interface Configuration
Command Usage
â—†
When enabled on a port, the authentication process sends a Password
Authentication Protocol (PAP) request to a configured RADIUS server. The user
name and password are both equal to the MAC address being authenticated.
â—†
On the RADIUS server, PAP user name and passwords must be configured in the
MAC address format XX-XX-XX-XX-XX-XX (all in upper case).
â—†
Authenticated MAC addresses are stored as dynamic entries in the switch
secure MAC address table and are removed when the aging time expires. The
maximum number of secure MAC addresses supported for the switch system is
1024.
â—†
Configured static MAC addresses are added to the secure address table when
seen on a switch port. Static addresses are treated as authenticated without
sending a request to a RADIUS server.
â—†
MAC authentication, 802.1X, and port security cannot be configured together
on the same port. Only one security mechanism can be applied.
â—†
MAC authentication cannot be configured on trunks (i.e., static nor dynamic).
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