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15.1 Overview
By default, all LAN and WAN interfaces on the EMG are in the same group and can communicate with
each other. Create interface groups to have the EMG assign the IP addresses in different domains to
different groups. Each group acts as an independent network on the EMG. 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.
15.1.1 What You Can Do in this Chapter
The Interface Grouping screens let you create multiple networks on the EMG
15.2 The Interface Grouping Screen
You can manually add a LAN interface to a new group. Alternatively, you can have the EMG
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 EMG assigns to the
clients in the default and/or user-defined groups. If you set the EMG 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
In the following example, the client that sends packets with the DHCP Vendor ID option set to MSFT 5.0
(meaning it is a Windows 2000 DHCP client) is assigned the IP address 192.168.2.2 and uses the WAN
eth10.0 interface.
Interface Grouping
EMG6726/8726-B10A User's Guide
179
C
H A P T E R
(Section 15.2 on page
Chapter 8 on page 100
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179).
for more information.
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