User's Manual

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3. Advanced Setting
The “Advanced Settings” window will allow user to set rules for incoming and outgoing traffic.
3.1. NAT
Network Add ress Translation (NA T) i s the process of modif ying the net work address
information o f the host in a p acket whil e in transit, so that it ca n be rem apped to a given
address space in another network. For example, the source address of a packet in a network
is changed to a different IP address known within another network.
3.1.1. Port Forward
Port forwarding, as the literal meaning, is the act of forwarding the data from WAN side to the
particular port of the private IP. This function can allow remote computers to reach a port on a
private IP address within a private LAN. In the following, it will introduce how to setup for Port
Forward. First, user needs to click the “Add” button and then select which forward type, TCP or
UDP or TCP/UDP, is p referred to trig ger the special application as shown in Figure 18. User
needs to assign some specific port for the WAN IP to be forwarded to the defined LAN IP and
port, and then click the “Save” button to add a Port Forward rule. The definition for each field is
shown on Table 8.