DGS-1250 Series Gigabit Ethernet Smart Managed Switch Web UI Reference Guide
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an active device becoming inactive. These events can be used to control the authorization state of the Port and initiate
the process of authenticating the attached device if the Port is unauthorized.
Port-based Network Access Control
Once the connected device has successfully been authenticated, the Port then becomes Authorized, and all
subsequent traffic on the Port is not subject to access control restriction until an event occurs that causes the Port to
become Unauthorized. Hence, if the Port is actually connected to a shared media LAN segment with more than one
attached device, successfully authenticating one of the attached devices effectively provides access to the LAN for all
devices on the shared segment. Clearly, the security offered in this situation is open to attack.
Figure 9-10 Example of Typical Port-based Configuration
802.1X Global Settings
This window is used to display and configure the global 802.1X settings.
To view the following window, click Security > 802.1X > 802.1X Global Settings, as shown below:
Figure 9-11 802.1X Global Settings Window
The fields that can be configured are described below:
Parameter Description
802.1X State
Select to enable or disable the global 802.1X state here.
802.1X Trap State
Select to enable or disable the 802.1X trap state here.
Click the Apply button to accept the changes made.
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