Port Filtering - THOMSON TCW770 User Manual

Chapter 2: WEB Configuration

4. Port Filtering

This page allows you to enter ranges of destination ports (applications) that you don't want your LAN
PCs to send packets to. Any packets your LAN PCs send to these destination ports will be blocked. For
example, you could block access to worldwide web browsing (http = port 80) but still allow email service
(SMTP port 25 and POP-3 port 110). To enable port filtering, set Start Port and End Port for each range,
and click Apply. To block only one port, set both Start and End ports the same.
Fig. 20
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Illustrations contained in this document are for representation only.