Operation Manual

Handleiding Internet van Ziggo 42
4.4.4 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
with the same value.
figure 30: Gateway\Advanced\Port Filtering