User`s guide

Chapter 10 Network Address Translation (NAT)
VMG8924-B10A and VMG8924-B30A Series User’s Guide
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third (C in the example). You assign the LAN IP addresses and the ISP assigns the WAN IP address.
The NAT network appears as a single host on the Internet.
Figure 81 Multiple Servers Behind NAT Example
Click Network Setting > NAT > Port Forwarding to open the following screen.
See Appendix G on page 397 for port numbers commonly used for particular services.
Figure 82 Network Setting > NAT > Port Forwarding
The following table describes the fields in this screen.
Table 56 Network Setting > NAT > Port Forwarding
LABEL DESCRIPTION
Add 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. Click the bulb to enable/disable
this rule.
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 to which the service is forwarded.
Start Port This is the first external port number that identifies a service.
End Port This is the last external port number that identifies a service.
Translation
Start Port
This is the first internal 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
WAN
LAN
192.168.1.1
IP Address assigned by ISP