UAG Series User’s Guide
253
CHAPTER 21
Layer 2 Isolation
21.1 Overview
Layer-2 isolation is used to prevent connected devices from communicating with each other in the
UAG’s local network(s), except for the devices in the white list, when layer-2 isolation is enabled on
the UAG and the local interface(s).
Note: The security policy control must be enabled before you can use layer-2 isolation.
In the following example, layer-2 isolation is enabled on the UAG’s interface Vlan1. A printer, PC
and AP are in the Vlan1. The IP address of network printer (C) is added to the white list. With this
setting, the connected AP then cannot communicate with the PC (D), but can access the network
printer (C), server (B), wireless client (A) and the Internet.
Figure 172 Layer-2 Isolation Application
21.1.1 What You Can Do in this Chapter
•Use the General screen (Section 21.2 on page 254) to enable layer-2 isolation on the UAG and
the internal interface(s).
•Use the White List screen (Section 21.3 on page 254) to enable and configures the white list.
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