ZyXEL Communications PMG5318-B20B - Network Address Translation (NAT); Virtual Servers

PMG5318-B20B User’s Guide
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CHAPTER 6
Network Address Translation (NAT)
6.1 Virtual Servers
Click Advanced Setup > NAT > Virtual Servers to open the screen where you manage the list of
virtual server rules.
A virtual server set is a list of inside (behind NAT on the LAN) servers, for example, web or FTP, that
you can make visible to the outside world even though NAT makes your whole inside network
appear as a single computer to the outside world.
Note: Many residential broadband ISP accounts do not allow you to run any server
processes (such as a Web or FTP server) from your location. Your ISP may
periodically check for servers and may suspend your account if it discovers any
active services at your location. If you are unsure, refer to your ISP.
Figure 27 Virtual Servers
Table 23 Virtual Servers
LABEL DESCRIPTION
Add Click this button to create a new entry.
Remove Select entries and click the Remove button to delete them.
Server Name This field displays the name of the service used by the packets for this virtual server.
External Port
Start
This is the first external port number that identifies a service.
External Port
End
This is the last external port number that identifies a service.
Protocol This show whether the virtual server applies to TCP traffic, UDP traffic, or both.
Internal Port
Start
This is the first internal port number that identifies a service.
Internal Port End This is the last internal port number that identifies a service.
Server IP
Address
This field displays the inside IP address of the server.
WAN Interface This field displays the WAN interface through which the service is forwarded.