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8.5 The LAN Additional Subnet Screen
Use this screen to configure IP alias and public static IP.
IP alias allows you to partition a physical network into different logical networks over the same Ethernet
interface. The Zyxel Device supports multiple logical LAN interfaces via its physical Ethernet interface
with the Zyxel Device itself as the gateway for the LAN network. When you use IP alias, you can also
configure firewall rules to control access to the LAN's logical network (subnet).
If your ISP provides the Public LAN service, the Zyxel Device may use a LAN IP address that can be
accessed from the WAN.
Click Network Setting > Home Networking > Additional Subnet to display the screen shown next.
Figure 111 Network Setting > Home Networking > Additional Subnet
The following table describes the labels in this screen.
Table 55 Network Setting > Home Networking > Additional Subnet
LABEL
IP Alias Setup
Group Name
Active
IPv4 Address
Subnet Mask
Public LAN
Chapter 8 Home Networking
DESCRIPTION
Select the interface group name for which you want to configure the IP alias settings. See
Chapter 15 on page 250
for how to create a new interface group.
Click this switch to configure a LAN network for the Zyxel Device. When the switch goes to the
right
, the following fields will be configurable. Otherwise, they're not.
Enter the IP address of your Zyxel Device in dotted decimal notation.
Your Zyxel Device will automatically calculate the subnet mask based on the IPv4 address that
you assign. Unless you are implementing subnetting, use this value computed by the Zyxel
Device.
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