ZyXEL Communications VSG1432-B101 Series User Manual

VSG1432-B101 Series User’s Guide

By default, all LAN and WAN interfaces on the ZyXEL Device are in the same group 
and can communicate with each other. Create interface groups to have the ZyXEL 
Device assign the IP addresses in different domains to different groups. Each 
group acts as an independent network on the ZyXEL Device. This lets devices 
connected to an interface group’s LAN interfaces communicate through the 
interface group’s WAN or LAN interfaces but not other WAN or LAN interfaces.

The Interface Group screens let you create multiple networks on the ZyXEL 
Device (

).

You can manually add a LAN interface to a new group. Alternatively, you can have 
the ZyXEL Device automatically add the incoming traffic and the LAN interface on 
which traffic is received to an interface group when its DHCP Vendor ID option 
information matches one listed for the interface group. 

Use the LAN screen to configure the private IP addresses the DHCP server on the 
ZyXEL Device assigns to the clients in the default and/or user-defined groups. If 
you set the ZyXEL Device to assign IP addresses based on the client’s DHCP 
Vendor ID option information, you must enable DHCP server and configure LAN 
TCP/IP settings for both the default and user-defined groups. See 

 for more information.