Access Security Guide K/KA/KB.15.15

Figure 47 Show command displaying HTTP redirect configuration
Reauthenticating a MAC Authenticated client
Using SNMP
The MIB variable hpicfUsrAuthMacAuthClientReauthenticateEntry in the hpicfUsrAuthMIB provides
the capability to reauthenticate a specific MAC client on a port. The MAC address and port are
required for SNMP reauthentication.
Using the CLI
To reauthenticate a client using the CLI, use this command:
HP Switch(config)# aaa port-access mac-based <single-port> reauthenticate mac-addr<MAC address>
The keyword mac-addr specifies single client reauthentication. If the reauthenticate parameter
is entered without the mac-addr keyword and MAC address, the command is executed as port
reauthentication — all clients on a port are reauthenticated.
Configuring the registration server URL
To configure the registration server URL, the command is:
HP Switch(config)# aaa port-access mac-based
unauth-redirect <URL>
Unconfiguring a MAC Authenticated registration server
Each configured registration server’s URL must be removed by specifying it exactly, for example:
HP Switch(config)# no aaa port-access mac-based
unauth-redirect <url>
registration server/reg.html
Configuring web-based authentication
Preparation for web-based authentication
1. If you have not already done so, configure a local username and password pair on the switch.
2. Identify or create a redirect URL for use by authenticated clients. HP recommends that you
provide a redirect URL when using web authentication. If a redirect URL is not specified, web
browser behavior following authentication can not be acceptable.
3. If you plan to use multiple VLANs with web authentication, ensure that these VLANs are
configured on the switch and that the appropriate port assignments have been made. Confirm
that the VLAN used by authorized clients can access the redirect URL.
Configuring web-based authentication 83