ZyXEL Communications SMG-700 Guía de usuario descargar pdf (Pagina 49)

Chapter 5 Advanced

P-974H/HW Series User’s Guide

5.5 Port Filtering

You can set the ZyXEL Device to drop traffic based on service port numbers and

protocol types. This feature allows you to specify the applications (such as MSN

and TFTP) the computers on the LAN cannot use. See Appendix D on page 99 for

common services.

Click Advanced > Port Filtering to display the configuration screen.

Figure 13 Advanced: Port Filtering

The following table describes the labels in this screen.

Table 14 Advanced: Port Filtering

LABEL DESCRIPTION

Start Port Enter the beginning service port number whose traffic you want the

ZyXEL Device to block.

End Port Type the ending service port number whose traffic you want the ZyXEL

Device to block. If you want to exclude only one service, enter the same

service port number as in the Start Port field above.

Protocol Specify the traffic protocol type. Choices are TCP, UDP and Both.

Enabled Select Enabled to block traffic based on the selected port number(s)

and protocol type.

Apply Click Apply to save the settings.

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ZyXEL Communications SMG-700 Guía de usuario Pagina 49