Quick Reference Guide

PowerConnect B-Series TI24X Configuration Guide 993
53-1002269-02
Configuring multi-device port authentication
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PowerConnect(config)# interface e 1
PowerConnect(config-if-e10000-1)# mac-authentication dos-protection enable
ITo specify a maximum rate for RADIUS authentication attempts, enter commands such as the
following.
PowerConnect(config)# interface e 1
PowerConnect(config-if-e10000-1)# mac-authentication dos-protection mac-limit 256
Syntax: [no] mac-authentication dos-protection mac-limit <number>
You can specify a rate from 1 – 65535 authentication attempts per second. The default is a rate of
512 authentication attempts per second.
Clearing authenticated MAC addresses
The Dell device maintains an internal table of the authenticated MAC addresses (viewable with the
show authenticated-mac-address command). You can clear the contents of the authenticated MAC
address table either entirely, or just for the entries learned on a specified interface. In addition,
you can clear the MAC session for an address learned on a specific interface.
To clear the entire contents of the authenticated MAC address table, enter the following command.
PowerConnect# clear auth-mac-table
Syntax: clear auth-mac-table
To clear the authenticated MAC address table of entries learned on a specified interface, enter a
command such as the following.
PowerConnect# clear auth-mac-table e1
Syntax: clear auth-mac-table <portnum>
The <portnum> parameter is a valid port number.
To clear the MAC session for an address learned on a specific interface, enter commands such as
the following.
PowerConnect(config)# interface e 1
PowerConnect(config-if-e10000-1)# mac-authentication clear-mac-session
00e0.1234.abd4
Syntax: mac-authentication clear-mac-session <mac-address>
This command removes the Layer 2 CAM entry created for the specified MAC address. If the device
receives traffic from the MAC address again, the MAC address is authenticated again.
Disabling aging for authenticated MAC addresses
MAC addresses that have been authenticated or denied by a RADIUS server are aged out if no
traffic is received from the MAC address for a certain period of time:
• Authenticated MAC addresses or non-authenticated MAC addresses that have been placed in
the restricted VLAN are aged out if no traffic is received from the MAC address over the device
normal MAC aging interval.