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Chapter 8 LAN
8.7 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 SBG3500-N supports multiple logical LAN interfaces via its physical Ethernet
interface with the SBG3500-N 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 SBG3500-N may use an LAN IP address that can be
accessed from the WAN.
Click Network Setting > LAN > Additional Subnet to display the screen shown next.
Figure 57 Network Setting > LAN > Additional Subnet
The following table describes the labels in this screen.
Table 36 Network Setting > LAN > Additional Subnet
LABEL
IP Alias Setup
Group Name
Active
IP Address
IP Subnet Mask
Public LAN
Active
IP Address
IP Subnet Mask
178
DESCRIPTION
Select the interface group name for which you want to configure the IP alias settings. See
Chapter 13 on page 226
for how to create a new interface group.
Select the checkbox to configure a LAN network for the SBG3500-N.
Enter the IP address of your SBG3500-N in dotted decimal notation.
Your SBG3500-N 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
SBG3500-N.
Select the checkbox to enable the Public LAN feature. Your ISP must support Public LAN and
Static IP.
Enter the public IP address provided by your ISP.
Enter the public IP subnet mask provided by your ISP.
SBG3500-N000 User's Guide
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Troubleshooting
