ZyXEL Communications VMG5313-B10A/ VMG5313-B30A User Manual

 Chapter 11 Network Address Translation (NAT)

VMG5313-B10A/-B30A Series User’s Guide

Multiple Servers Behind NAT Example

Click Network Setting > NAT > Port Forwarding to open the following screen.

See 

 for port numbers commonly used for particular services. 

Network Setting > NAT > Port Forwarding

The following table describes the fields in this screen. 

Network Setting > NAT > Port Forwarding

Add new rule

Click this to add a new rule.

#

This is the index number of the entry.

Status

This field displays whether the NAT rule is active or not. A yellow bulb signifies that this rule 
is active. A gray bulb signifies that this rule is not active.

Service Name

This shows the service’s name.

WAN Interface

This shows the WAN interface through which the service is forwarded.

WAN IP

This field displays the incoming packet’s destination IP address.

Server IP 
Address

This is the server’s IP address.

Start Port 

This is the first external port number that identifies a service.

A=192.168.1.33

D=192.168.1.36

C=192.168.1.3

B=192.168.1.34