H3C Technologies H3C S3100 Series Switches - Manual (Page 457)

1-2
Related Concepts
MAC Authentication Timers
The following timers function in the process of MAC authentication:
z Offline detect timer: At this interval, the switch checks to see whether an online user has gone
offline. Once detecting that a user becomes offline, the switch sends a stop-accounting notice to
the RADIUS server.
z Quiet timer: Whenever a user fails MAC authentication, the switch does not initiate any MAC
authentication of the user during a period defined by this timer.
z Server timeout timer: During authentication of a user, if the switch receives no response from the
RADIUS server in this period, it assumes that its connection to the RADIUS server has timed out
and forbids the user from accessing the network.
Quiet MAC Address
When a user fails MAC authentication, the MAC address becomes a quiet MAC address, which means
that any packets from the MAC address will be discarded simply by the switch until the quiet timer
expires. This prevents an invalid user from being authenticated repeatedly in a short time.
z If the quiet MAC is the same as the static MAC configured or an authentication-passed MAC, then
the quiet function is not effective.
z The S3100 series Ethernet switches support quiet MAC function on ports.
Configuring Basic MAC Authentication Functions
Table 1-1 Configure basic MAC authentication functions
Operation Command Remarks
Enter system view system-view —
Enable MAC
authentication
globally
mac-authentication
Required
Disabled by default
In system view
mac-authentication
interface interface-list
interface interface-type
interface-number
mac-authentication
Enable MAC
authentication for the
specified port(s) or the
current port
In interface
view
quit
Use either method
Disabled by default
Set the user name in
MAC address mode
for MAC
authentication
mac-authentication authmode
usernameasmacaddress
[ usernameformat { with-hyphen |
without-hyphen } { lowercase | uppercase }
| fixedpassword password ]
Optional
By default, the MAC
address of a user is used
as the user name.