Chapter 6 Home Networking
eircom F1000 Modem User’s Guide
120
6.7
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 Device supports multiple logical LAN interfaces via its physical Ethernet
interface with the 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 Device 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 59
Network Setting > Home Networking > Additional Subnet
The following table describes the labels in this screen.
Table 32
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 11 on page 175
for how to create a new interface group.
Active
Select the checkbox to configure a LAN network for the Device.
IPv4 Address
Enter the IPv4 IP address of your Device in dotted decimal notation.
Subnet Mask/
Prefix Length
Your Device will automatically calculate the subnet mask based on the IP address that you
assign. Unless you are implementing subnetting, use the subnet mask computed by the
Device.
Public LAN
Active
Select the checkbox to enable the Public LAN feature. Your ISP must support Public LAN and
Static IP.
IPv4 Address
Enter the public IPv4 IP address provided by your ISP.
Subnet Mask/
Prefix Length
Enter the public IP subnet mask provided by your ISP.
19216811.live