ZyXEL P-663H-51 Guia Do Utilizador

 Chapter 5 WAN Setup

P-663H-51 User’s Guide

The following table describes the labels in this screen.  

This is the last WAN setup screen to display. Use this screen to check your settings before 
saving them. Click Back if you need to make any changes. If the settings are OK, click Save 
to save the settings. Use the Save/Reboot button in the Advanced Setup > WAN screen to 
restart the ZyXEL Device and use the WAN connection settings. 

Table 18   Advanced Setup > WAN > Add (4: MER)

Enable NAT

Turn on NAT to translate IP addresses between two different networks (so you 
can have a private LAN with IP addresses that are different from the public IP 
addresses on the WAN. See 

 for more details.

Enable Fullcone 
NAT

This field displays when you enable NAT. In full cone NAT, all requests from the 
same private IP address and port are mapped to the same public source IP 
address and port. Someone on the Internet only needs to know the mapping 
scheme in order to send packets to a device behind the ZyXEL Device.

The ZyXEL Device uses restricted cone NAT when you disable full cone NAT.

Enable Firewall

Turn on the firewall to block traffic originating from the WAN from going to the 
LAN.

Enable IGMP 
Multicast

IGMP (Internet Group Management Protocol) is a network-layer protocol used to 
establish membership in a Multicast group - it is not used to carry user data. 
Turn this on to allow multicast traffic and have the ZyXEL Device act as an 
IGMP proxy.

Enable WAN 
Service

Select this option to use this WAN connection or clear the option to not use this 
WAN connection.

Service Name

This is the name for the WAN connection. Use the default or define your own.

Back

Click this to return to the previous screen.

Next

Click this to go to the following screen.