ZyXEL Communications P-2304R-P1 Series User Manual

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Chapter 7 LAN
P-2304R-P1 Series User’s Guide
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The ZyXEL Device supports both IGMP version 1 (IGMP-v1) and IGMP version 2 (IGMP-
v2
). At start up, the ZyXEL Device queries all directly connected networks to gather group 
membership. After that, the ZyXEL Device periodically updates this information. IP 
multicasting can be enabled/disabled on the ZyXEL Device LAN and/or WAN interfaces in 
the web configurator (LAN; WAN). Select None to disable IP multicasting on these 
interfaces.
7.1.7  Any IP
Traditionally, you must set the IP addresses and the subnet masks of a computer and the 
ZyXEL Device to be in the same subnet to allow the computer to access the Internet (through 
the ZyXEL Device). In cases where your computer is required to use a static IP address in 
another network, you may need to manually 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 40   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.