ZyXEL Communications VSG1435-B101 - V1.10, Manual

Page: 183 / 412

Chapter 12 Network Address Translation (NAT)
VSG1435-B101 Series User’s Guide
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The following table describes the labels in this screen.
12.3 The Applications Screen
This screen provides a summary of all NAT applications and their configuration. In
addition, this screen allows you to create new applications and/or remove existing
ones.
Table 43 Port Forwarding: Add/Edit
LABEL DESCRIPTION
Active Clear the check box to disable the rule. Select the check box to enable it.
This field is read-only in the Port Forwarding Configuration screen.
Service Name Enter a name to identify this rule using keyboard characters (A-Z, a-z, 1-
2 and so on).
This field is read-only in the Port Forwarding Edit screen.
WAN Interface Select the WAN interface through which the service is forwarded.
You must have already configured a WAN connection with NAT enabled.
External Start
Port Enter the original destination port for the packets.
To forward only one port, enter the port number again in the External
End Port field.
To forward a series of ports, enter the start port number here and the
end port number in the
External End Port field.
External End
Port Enter the last port of the original destination port range.
To forward only one port, enter the port number in the External Start
Port field above and then enter it again in this field.
To forward a series of ports, enter the last port number in a series that
begins with the port number in the
External Start Port field above.
Internal Start
Port This shows the port number to which you want the ZyXEL Device to
translate the incoming port. For a range of ports, enter the first number
of the range to which you want the incoming ports translated.
Internal End
Port This shows the last port of the translated port range.
Server IP
Address Enter the inside IP address of the virtual server here.
Protocol Type Select the protocol supported by this virtual server. Choices are TCP ,
UDP , or TCP/UDP .
Apply Click Apply to save your changes.
Cancel Click Cancel to exit this screen without saving.