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Configuring Port-Based and Client-Based Access Control (802.1X)
Configuring Switch Ports To Operate As Supplicants for 802.1X Connections to Other Switches
4. The RADIUS server then analyzes the response and sends either a “suc-
cess” or “failure” packet back through switch “B” to port A1.
• A “success” response unblocks port B5 to normal traffic from port A1.
• A “failure” response continues the block on port B5 and causes port
A1 to wait for the “held-time” period before trying again to achieve
authentication through port B5.
Supplicant Port Configuration
Enabling a Switch Port To Operate as a Supplicant. You can configure
one or more switch ports to operate as supplicants for point-to-point links to
802.1X-aware ports on other switches. You must configure a port as a
supplicant before you can configure any supplicant-related parameters.
Configuring a Supplicant Switch Port. Note that you must enable suppli-
cant operation on a port before you can change the supplicant configuration.
This means you must execute the supplicant command once without any other
parameters, then execute it again with a supplicant parameter you want to
configure. If the intended authenticator port uses RADIUS authentication,
then use the identity and secret options to configure the RADIUS-expected
username and password on the supplicant port. If the intended authenticator
port uses Local 802.1X authentication, then use the identity and secret options
to configure the authenticator switch’s local username and password on the
supplicant port.
Syntax: [no] aaa port-access supplicant [ethernet] < port-list >
Configures a port to operate as a supplicant using either the
default supplicant parameters or any previously configured
supplicant parameters, whichever is the most recent. The
“no” form of the command disables supplicant operation on
the specified ports.
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