ZyXEL Communications P660HN-Fx User Manual

Chapter 11 Network Address Translation (NAT)

ADSL Series User’s Guide

Port Forwarding: Add/Edit 

The following table describes the labels in this screen. 

Use the Sessions screen to limit the number of concurrent NAT sessions each client can use. 

Click Network Setting > NAT > Sessions to display the following screen. 

Port Forwarding: Add/Edit

Service Name

Enter a name to identify this rule using keyboard characters (A-Z, a-z, 1-2 and so on). 

WAN Interface

Select the WAN interface through which the service is forwarded.

You must have already configured a WAN connection with NAT enabled.

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.

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.

Translation 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.

Translation 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.

Back

Click Back to return to the previous screen without saving.