ZyXEL Communications VMG5313-BXB SERIES User Manual page 162

Chapter 11 Network Address Translation (NAT)
Figure 77 Multiple Servers Behind NAT Example
A=192.168.1.33
B=192.168.1.34
C=192.168.1.3
D=192.168.1.36
Click Network Setting > NAT > Port Forwarding to open the following screen.
See Appendix D on page 329
Figure 78 Network Setting > NAT > Port Forwarding
The following table describes the fields in this screen.
Table 57 Network Setting > NAT > Port Forwarding
LABEL DESCRIPTION
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 This is the server's IP address.
Address
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 This is the first internal port number that identifies a service.
Start Port
Translation End This is the last internal port number that identifies a service.
Port
Protocol This shows the IP protocol supported by this virtual server, whether it is TCP, UDP, or TCP/
UDP.
Modify Click the Edit icon to edit this rule.
Click the Delete icon to delete an existing rule.
LAN
192.168.1.1
for port numbers commonly used for particular services.
VMG5313-BXB Series User's Guide
162
WAN
IP Address assigned by ISP