1-5z Different ports can be configured with different guest VLANs, but a port can be configured with onlyone guest VLAN.z If you configure both the 802.1X authentication MGV and the MAC authentication MGV on a port,only the 802.1X authentication MGV will take effect. For description on 802.1X authentication MGV,refer to 802.1X Configuration in the Security Volume.z The priority of the MGV function is higher than that of the intrusion protection function of blockingframes from a specified MAC address, but lower than that of the intrusion protection function ofdisabling the port. For the port intrusion protection functions, refer to Port Security Configuration inthe Security Volume.z The priority of the MGV function is higher than that of the quiet MAC function of MACauthentication.z You cannot configure both the guest VLAN function and the free IP function in EAD fastdeployment on a port. For the free IP configuration, refer to 802.1X Configuration in the SecurityVolume.Displaying and Maintaining MAC AuthenticationTo do… Use the command… RemarksDisplay the global MAC authenticationinformation or the MAC authenticationinformation about specified portsdisplay mac-authentication[ interface interface-list ] Available in any viewClear the MAC authentication statistics reset mac-authentication statistics[ interface interface-list ] Available in user viewMAC Authentication Configuration ExamplesLocal MAC Authentication Configuration ExampleNetwork requirementsAs illustrated in Figure 1-1, a supplicant is connected to the device through port GigabitEthernet 1/0/1.z Local MAC authentication is required on every port to control user access to the Internet.z All users belong to domain aabbcc.net.z Local users use their MAC addresses as the usernames and passwords for authentication.z Set the offline detect timer to 180 seconds and the quiet timer to 3 minutes.Figure 1-1 Network diagram for local MAC authentication