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Chapter 2: Web Configuration
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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