User`s guide

Chapter 12 NAT
EMG2926-Q10A User’s Guide
101
Figure 69 Network > NAT > Port Forwarding
The following table describes the labels on this screen.
Table 47 Network > NAT > Port Forwarding
LABEL DESCRIPTION
Default Server Setup
Default Server In addition to the servers for specified services, NAT supports a default server. A default
server receives packets from ports that are not specified on the Port Forwarding
screen. You can decide whether you want to use the default server or specify a server
manually.
Select this to use the default server.
Change to Server Select this and manually enter the server’s IP address.
Service Name Select a pre-defined service in the second field next to Service Name. The pre-defined
service port number(s) and protocol will be displayed in the port forwarding summary
table.
Otherwise, select User define and type a name (of up to 31 printable characters) to
identify this rule in the first field next to Service Name. You need to manually enter the
port number(s) and select the IP protocol.
Service Protocol Select the transport layer protocol supported by this virtual server. Choices are TCP,
UDP, or TCP_UDP.
If you have chosen a pre-defined service in the Service Name field, this field will not be
available.
Port Range Type the first and last internal port number that identifies a service.
Translation Port
Range
Type the first and last external port number that identifies a service.