When MAB is configured for use within the 802.1X environment, an administrator must create a policy that allows the devices onto the network. Which information is used for the username and password?
A.
The MAB uses the IP address as username and password.
B.
The MAB uses the Call-Station-ID as username and password.
C.
The MAB uses the MAC address as username and password.
D.
Each device must be set manually by the administrator.
C. The MAB uses the MAC address as the username and password.
In MAB authentication, the MAC address of the device attempting to connect to the network is used as both the username and the password. The MAC address is a unique identifier assigned to the network interface card (NIC) of each device. The MAC address is extracted from the device's Ethernet frame during the authentication process, and it serves as the credentials for MAB authentication.
The network administrator creates a policy that allows devices with specific MAC addresses to be granted access to the network. When a device with a MAC address matching the allowed list attempts to connect, the MAC address is used as the username and password to authenticate and allow network access.
Given Answer C is correct.
A MAC Authentication Bypass (MAB) operation involves authentication using RADIUS Access-Request packets with both the username and password attributes. By default, the username and the password values are the same and contain the MAC address. The Configurable MAB Username and Password feature enables you to configure both the username and the password attributes in the following scenarios:
https://content.cisco.com/chapter.sjs?uri=/searchable/chapter/content/en/us/td/docs/ios-xml/ios/sec_usr_aaa/configuration/15-e/sec-usr-aaa-15-e-book/sec-usr-config-mab-usrname-pwd.html.xml
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