Comtrend Corporation CT-536+ User Manual page 39

4. Click Next to display the following screen.
Enable NAT checkbox: If the LAN is configured with a private IP address, the user
should select this checkbox. The NAT submenu on the left side main panel will be
displayed after reboot. The user can then configure NAT-related features after the
system comes up. If a private IP address is not used on the LAN side, this checkbox
should be de-selected to free up system resources for better performance. When
the system comes back after reboot, the NAT submenu will not be displayed on the
left main panel. The default setting for MER is disabled.
Enable Firewall checkbox: If the firewall checkbox is selected, the Security
submenu on the left side main panel will be displayed after system reboot. The
user can then configure firewall features after the system comes up. If firewall is
not used, this checkbox should be de-selected to free up system resources for better
performance. When system comes back after reboot, the Security submenu will
not be displayed on the left main panel.
Enable IGMP Multicast: Tick the checkbox to enable IGMP multicast (proxy).
IGMP (Internet Group Membership Protocol) is a protocol used by IP hosts to report
their multicast group memberships to any immediately neighboring multicast
routers.
Enable WAN Service: Tick the checkbox to enable the WAN service. If this item
is not selected, you will not be able to use the WAN service.
Service Name: This is User-defined.
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