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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 63 Multiple Servers Behind NAT Example
A=192.168.1.33
B=192.168.1.34
C=192.168.1.3
Click Network Setting > NAT > Port Forwarding to open the following screen.
See
Appendix G on page 343
Figure 64 Network Setting > NAT > Port Forwarding
The following table describes the fields in this screen.
Table 45 Network Setting > NAT > Port Forwarding
LABEL
Add new rule
#
Status
Service Name
WAN Interface
Server IP
Address
Start Port
End Port
Translation
Start Port
Translation End
Port
Protocol
Modify
VMG5313-B10A/-B30A Series User's Guide
LAN
192.168.1.1
D=192.168.1.36
for port numbers commonly used for particular services.
DESCRIPTION
Click this to add a new rule.
This is the index number of the entry.
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.
This shows the service's name.
This shows the WAN interface through which the service is forwarded.
This is the server's IP address.
This is the first external port number that identifies a service.
This is the last external port number that identifies a service.
This is the first internal port number that identifies a service.
This is the last internal port number that identifies a service.
This shows the IP protocol supported by this virtual server, whether it is TCP, UDP, or TCP/
UDP.
Click the Edit icon to edit this rule.
Click the Delete icon to delete an existing rule.
Chapter 11 Network Address Translation (NAT)
WAN
IP Address assigned by ISP
157
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