Chapter 5 Advanced
P-974H/HW Series User’s Guide
49
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
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.
Summary of Contents for P-974H - V3.70
Page 2: ......
Page 8: ...Safety Warnings P 974H HW Series User s Guide 8...
Page 12: ...Table of Contents P 974H HW Series User s Guide 12...
Page 16: ...List of Tables P 974H HW Series User s Guide 16...
Page 18: ...18...
Page 22: ...Chapter 1 Introduction P 974H HW Series User s Guide 22...
Page 28: ...Chapter 2 The Web Configurator P 974H HW Series User s Guide 28...
Page 42: ...Chapter 3 Status P 974H HW Series User s Guide 42...
Page 68: ...Chapter 7 Maintenance P 974H HW Series User s Guide 68...
Page 70: ...70...
Page 76: ...Appendix A Product Specifications P 974H HW Series User s Guide 76...
Page 98: ...Appendix C Setting up Your Computer s IP Address P 974H HW Series User s Guide 98...
Page 102: ...Appendix D Common Services P 974H HW Series User s Guide 102...