User's Manual

Chapter 7 LAN Setup
P-2612HW Series User’s Guide
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configure the network settings of the computer every time you want to access the
Internet via the ZyXEL Device.
With the Any IP feature and NAT enabled, the ZyXEL Device allows a computer to
access the Internet without changing the network settings (such as IP address and
subnet mask) of the computer, when the IP addresses of the computer and the
ZyXEL Device are not in the same subnet. Whether a computer is set to use a
dynamic or static (fixed) IP address, you can simply connect the computer to the
ZyXEL Device and access the Internet.
The following figure depicts a scenario where a computer is set to use a static
private IP address in the corporate environment. In a residential house where a
ZyXEL Device is installed, you can still use the computer to access the Internet
without changing the network settings, even when the IP addresses of the
computer and the ZyXEL Device are not in the same subnet.
Figure 89 Any IP Example
The Any IP feature does not apply to a computer using either a dynamic IP
address or a static IP address that is in the same subnet as the ZyXEL Device’s IP
address.
Note: You must enable NAT/SUA to use the Any IP feature on the ZyXEL Device.
How Any IP Works
Address Resolution Protocol (ARP) is a protocol for mapping an Internet Protocol
address (IP address) to a physical machine address, also known as a Media Access
Control or MAC address, on the local area network. IP routing table is defined on
IP Ethernet devices (the ZyXEL Device) to decide which hop to use,
to help
forward data along to its specified destination.
Internet
192.168.1.1
192.168.10.1
Internet
192.168.10.1