Chapter 12 Network Address Translation (NAT)

The following table describes the labels in this screen.

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

Enter the original destination port for the packets.

Port

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

Enter the last port of the original destination port range.

Port

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

This shows the port number to which you want the ZyXEL Device to

Port

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

This shows the last port of the translated port range.

Port

 

 

 

Server IP

Enter the inside IP address of the virtual server here.

Address

 

 

 

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.

 

 

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.

 

183

VSG1435-B101 Series User’s Guide