User guide

30
NTC-40 –HSPA+ M2M WiFi Router with Voice
YML40V
www.netcommwireless .com
NTC-40 Series – HSPA+ M2M WiFi Router
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 27 - 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
Enter a number to uniquely identify the port mapping rule. 1 to as many as needed.
Protocol
Specify the protocol to use for the port mapping rule. Options are TCP, UDP or All protocols.
Source IP Address
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
Specify the external port(s) to listen to.
Destination IP Address
Local Area Network IP Address of device to forward inbound requests to.
Destination Port Range
Local Area Network Port(s) to forward connections to.
Table 17 - NAT Configuration Items
1. Enter the IP Mapping configuration information as appropriate.
2. Click the “Save” button.
Please 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.