Chapter 8 Home Networking
VMG3925-B10A User’s Guide
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8.5 The Additional Subnet Screen
Use the Additional Subnet 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 VMG supports multiple logical LAN interfaces via its physical Ethernet
interface with the VMG 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 VMG may use an LAN IP address that can be
accessed from the WAN.
Click Network Setting > Home Networking > Additional Subnet to display the screen shown
next.
Figure 54 Network Setting > Home Networking > Additional Subnet
The following table describes the labels in this screen.
Table 34 Network Setting > Home Networking > Additional Subnet
LABEL DESCRIPTION
IP Alias Setup
Group Name Select the interface group name for which you want to configure the IP alias settings. See
Chapter 15 on page 183 for how to create a new interface group.
Active Select Enable to configure a LAN network for the VMG.
IPv4 Address Enter the IP address of your VMG in dotted decimal notation.
Subnet Mask Your VMG 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 VMG.
Public LAN
Active Select Enable to enable the Public LAN feature. Your ISP must support Public LAN and
Static IP.
IPv4 Address Enter the public IP address provided by your ISP.
Subnet Mask Enter the public IPv4 subnet mask provided by your ISP.
Offer Public IP
by DHCP
Select Enable to enable the VMG to provide public IP addresses by DHCP server.
Enable ARP
Proxy
Select Enable to enable the ARP (Address Resolution Protocol) proxy.
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