Web Management
4
4.1.5.10 Security - Network - NAS (Network Access Server)
This page allows you to configure the IEEE 802.1X and MAC-based authentication system and port
settings.
d access to a network by requiring users to first submit credentials for authentication.
access to
d below.
stem. The
The IEEE 802.1X standard defines a port-based access control procedure that prevents
unauthorize
One or more central servers, the backend servers, determine whether the user is allowed
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 explore
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 sy
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.
System Configuration
Mode
ly enabled or disabled on the stack. If globally disabled, all ports are
forwarding of frames.
Indicates if NAS is global
allowed
Re-authentication Enabled
If checked, successfully authenticated supplicants/clients are re-authenticated after the interval
tion Period. Re-authentication for 802.1X-enabled ports can be used
specified by the Re-authentica
to detect if a new device is plugged into a switch port or if a supplicant is no longer attached.
For MAC-based ports, re-authentication is only useful if the RADIUS server configuration has
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Summary of Contents for GV-POE0812
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