Application - ZyXEL Communications NBG4615 User Manual

Chapter 20 NAT
The following table describes the labels in this screen.
Table 69 Network > NAT > General
LABEL
NAT Setup
Enable Network
Address
Translation
Default Server Setup
Server IP
Address
Apply
Cancel

20.3 Application

Port forwarding allows you to define the local servers to which the incoming services will be
forwarded. To change your NBG4615's port forwarding settings, click Network > NAT >
Application. The screen appears as shown.
Note: If you do not assign a Default Server IP address in the NAT > General screen,
the NBG4615 discards all packets received for ports that are not specified in this
screen or remote management.
Refer to Appendix F on page 301
Figure 111 Network > NAT > Application
174
DESCRIPTION
Network Address Translation (NAT) allows the translation of an Internet protocol
address used within one network (for example a private IP address used in a
local network) to a different IP address known within another network (for
example a public IP address used on the Internet).
Select the check box to enable NAT.
In addition to the servers for specified services, NAT supports a default server. A
default server receives packets from ports that are not specified in the
Application screen.
If you do not assign a Default Server IP address, the NBG4615 discards all
packets received for ports that are not specified in the Application screen or
remote management.
Click Apply to save your changes back to the NBG4615.
Click Cancel to begin configuring this screen afresh.
for port numbers commonly used for particular services.
NBG4615 User's Guide