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The following table describes the labels in this screen.
Table 18 Advanced Setup > WAN > Add (4: MER)
LABEL
Enable NAT
Enable Fullcone
NAT
Enable Firewall
Enable IGMP
Multicast
Enable WAN
Service
Service Name
Back
Next
5.16 WAN Setup Summary
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.
P-663H-51 User's Guide
DESCRIPTION
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
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.
Turn on the firewall to block traffic originating from the WAN from going to the
LAN.
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.
Select this option to use this WAN connection or clear the option to not use this
WAN connection.
This is the name for the WAN connection. Use the default or define your own.
Click this to return to the previous screen.
Click this to go to the following screen.
Chapter 5 WAN Setup
Chapter 7 on page 73
for more details.
65
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Troubleshooting
