ZyXEL Communications VSG-1200 V2 用户手册

VSG-1200 V2 User’s Guide

Chapter 23 Private LAN

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This chapter shows you how to set up a private LAN that allows specified devices to 
communicate with each other. 

By default the IP Plug and Play (iPnP) and layer-2 isolation features (see 

) are enabled to prevent devices on the LAN from communicating with each other. 

These features provide additional security protection. 

However, you can configure a private LAN to allow communication between devices with the 
specified IP addresses in the Private LAN screen. The VSG does not apply iPnP or layer-2 
isolation on the devices in a private LAN. 

The following figure shows a network example where computers A and B can communicate 
with each other in the private LAN. Since computers C and D are not in the private LAN, the 
VSG disallows communication between the two. 

Figure 112   Private LAN Network Example 

To specify the IP address(es) to belong to the private LAN, click Advanced and Private LAN 
in the navigation panel.