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Chapter 6 LAN Screens
ZyWALL 2 Plus User’s Guide
130
The following table describes the labels in this screen.
6.9 LAN IP Alias
IP alias allows you to partition a physical network into different logical networks over the
same Ethernet interface.
The ZyWALL has a single LAN interface. Even though more than one of ports 1~4 may be in
the LAN port role, they are all still part of a single physical Ethernet interface and all use the
same IP address.
The ZyWALL supports three logical LAN interfaces via its single physical LAN Ethernet
interface. The ZyWALL itself is the gateway for each of the logical LAN networks.
When you use IP alias, you can also configure firewall rules to control access between the
LAN's logical networks (subnets).
" Make sure that the subnets of the logical networks do not overlap.
The following figure shows a LAN divided into subnets A, B, and C.
Figure 84 Physical Network & Partitioned Logical Networks
To change your ZyWALL’s IP alias settings, click NETWORK > LAN > IP Alias. The
screen appears as shown.
Table 23 NETWORK > LAN > Static DHCP
LABEL DESCRIPTION
# This is the index number of the Static IP table entry (row).
MAC Address Type the MAC address of a computer on your LAN.
IP Address Type the IP address that you want to assign to the computer on your LAN.
Alternatively, click the right mouse button to copy and/or paste the IP address.
Apply Click Apply to save your changes back to the ZyWALL.
Reset Click Reset to begin configuring this screen afresh.