Vantage Service Gateway User's Guide

VSG-1200 V2 User’s Guide
Chapter 23 Private LAN 168
CHAPTER 23
Private LAN
This chapter shows you how to set up a private LAN that allows specified devices to
communicate with each other.
23.1 Private LAN Overview
By default the IP Plug and Play (iPnP) and layer-2 isolation features (see Section 5.1 on
page 56) 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
23.2 Configuring a Private LAN
To specify the IP address(es) to belong to the private LAN, click Advanced and Private LAN
in the navigation panel.
A
Private LAN
B
C
D
Internet