802.1X & IMPB Mode
Figure 6 - 54 802.1X & IMPB Mode
This mode adds an extra layer of security by checking the IP MAC-Port Binding (IMPB) table before trying one of the
supported authentication methods. The IMPB Table is used to create a ‘white list’ that checks if the IP streams sent by
authorized hosts have been granted or not. In the above diagram the Switch port has been configured to allow clients
to authenticate using 802.1X. If a client passes IMPB authentication and 802.1X authentication, access will be granted.
If a client fails one of the authentication methods, access will be denied.
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