307 - D-Link xStack DGS-3400 Series Reference Manual

x Stack
The following fields can be set:
Parameter
Unit - Port
Ports (e.g: 1, 5, 7-
12)
To view particular port settings, choose the unit - port number from the pull-down menu and click Find. To view all entries on the
window, click View All. To delete an entry, enter the port number, and click Clear.
802.1X
802.1X Port-based and Host-based Access Control
The IEEE 802.1X standard is a security measure for authorizing and authenticating users to gain access to various wired or
wireless devices on a specified Local Area Network by using a Client and Server based access control model. This is
accomplished by using a RADIUS server to authenticate users trying to access a network by relaying Extensible Authentication
Protocol over LAN (EAPOL) packets between the Client and the Server. The following figure represents a basic EAPOL packet:
Utilizing this method, unauthorized devices are restricted from connecting to a LAN through a port to which the user is connected.
EAPOL packets are the only traffic that can be transmitted through the specific port until authorization is granted. The 802.1x
Access Control method holds three roles, each of which are vital to creating and upkeeping a stable and working Access Control
security method.
®
DGS-3400 Series Layer 2 Gigabit Ethernet M anaged Sw itch
Figure 6 - 14 ND Snoop Entries window
Description
Use the pull-down menu to choose the Switch ID number of the Switch in the switch stack and
the port on the Switch.
Specify the switch ports or tick the All Ports check box to select all ports.
Figure 6 - 15 The EAPOL Packet

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