Niveo Professional NGSME16T2H - Manual (Page 71)

Chapter 3: Featuring Configuration – Web UI
Featuring Configuration – Web UI
NGSME16T2H User Manual | 71
Security / Network / Network Access Server Configuration
This page allows you to configure the IEEE802.1X 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, 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.The
IEEE802.1X 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 802.1X authentication.
The NAS configuration consists of two sections, a system- and a port-wide.