User guide

UM-00003
www.netcommwireless.com
NTC-30WV – Outdoor HSPA+ WiFi Router with Voice
33
NAT
The NAT page is used to configure the Network Address Translation rules currently in use on the router. The router is in NAT mode
by default.
Figure 33 - NAT Settings
This is only needed if you need to map inbound requests to a specific port on the WAN IP address to a device connected on the
Ethernet interface, e.g. a web camera.
How to configure Port Forwarding
OPTION
DEFINITION
Mapping no
Number to identify the port mapping, numbered from 1 to as many as needed.
Protocol
Specify the protocol to use for the port mapping. Options include TCP, UDP and All protocols.
Source IP Address
This field specifies either a “Friendly” IP address that is allowed to access the router or a wildcard IP address of
0.0.0.0 that allows all IP addresses to access the router.
Incoming Port Range
This field specifies the external port(s) to listen to.
Destination IP Address
The Local Area Network Address of device to forward inbound requests to.
Destination Port Range
The Local Area Network Port(s) to forward connections to.
Table 21 - NAT Configuration Items
1. Enter the IP Mapping configuration information as appropriate.
2. Click the “Save” button to save any changes to the settings.
Note: If the “Incoming Port Range” specifies a single port (as above) then the destination port can be set to any port. If the
“Incoming Port Range” specifies a range of port numbers then the “Destination Port Range” MUST be the same
as the “Incoming Port Range”.
To delete a port forwarding rule, click on the corresponding “Delete Entry” link from the list of IP Mappings.