ZyXEL Communications P-660RU-T1 v3, User Manual, Page: 92 / 230

Chapter 10 Network Address Translation (NAT)
P-660RU-Tx v3 User’s Guide
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10.4.2 Configuring the Virtual Server Screen
Click Advanced Setup > NAT > Virtual Server to open the following screen.
See Appendix D on page 213 for port numbers commonly used for particular services.
Figure 37 Advanced Setup > NAT > Virtual Server
The following table describes the fields in this screen.
Table 24 Advanced Setup > NAT > Virtual Server
LABEL DESCRIPTION
Virtual Server
Virtual Server for This is the PVC that this virtual server will use.
Rule Index Select the rule’s index number from the drop-down list box.
Application Use the drop-down list box to select the type of server you have on your network.
Applications or services are defined by their protocol (TCP or UDP) and port
number. For example, TCP port 80 defines web (HTTP) traffic. If you have a web
server on your network, you need to forward HTTP applications (TCP port 80) to
the server’s IP address.
Choices are:
FTP , SSH , TELNET , SMTP , HTTP_Server , POP3 , HTTPS , T.120 ,
H.323 , PPTP , pcAnywhere , VNC and CUSeeMe .
Protocol Use the drop-down list box to choose the IP port ( ALL , TCP or UDP ) that defines
your service.