4.20
Security – Network – NAS
This page allows the user to configure the IEEE 802.1X and MAC-based authentication system and port settings. The IEEE 802.1X standard defines a port-based access control procedure that prevents unauthorized access to a network, by requiring users to first submit credentials for authentication. One or more central servers and the backend servers determine whether the user is allowed access to the network. These backend (RADIUS) servers are configured on the “Configuration->Security->AAA” page (see section 4.24 Security – AAA – Radius on page 135). The IEEE 802.1X standard defines port-based operation, but non- standard variants overcome security limitations as shall be explored below. MAC-based authentication allows for authentication of more than one user on the same port, and doesn’t require the user to have special 802.1X supplicant software installed on his system. The switch uses the user’s MAC address to authenticate against the backend server. Intruders can create counterfeit MAC addresses, which makes MAC-based authentication less secure than 802.1 X authentications. The NAS configuration consists of two sections, a system- and a port-wide.
4.20.1
System Configuration Set or show the NAS system configuration parameters.
SMB - CLI UM
Rev: 1.1
Page 108 of 275
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