NETGEAR M4200 Software Administration Manual page 376

1. Traffic from an unknown client
The switch learns the MAC address
2. EAPoL Request Identity message (30 seconds)
3. EAPoL Request Identity message (30 seconds)
4. EAPoL Request Identity message (30 seconds)
5. EAPoL time-out and MAB initiation (30 seconds)
8. The unknown client is authenticated
Unknown client
Figure 42. MAB operation
The following figure shows a switch that has MAB configured on port 1/0/1. The IP phone that
is connected to this port can access the network after being authenticated successfully by the
Microsoft network policy server.
IP phone
MAC address 3C07545AC8C0
Figure 43. MAB topology with a switch, IP phone, and Microsoft server
Managed Switches
Port 1/0/1
MAB
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6. RADIUS Accept-Request message
7. RADIUS Accept-Access message
Switch
Microsoft Windows
2008 R2 Server
IP address 10.1.10.46
Port 1/0/10
RADIUS server
Switch
IP address 10.1.10.50