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SR804N Cable Modem User Manual
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Figure 20 MAC filtering configuration
This page is used to prevent PCs from sending outgoing TCP/UDP traffic to the WAN
via their MAC address
This is useful for the fact that the MAC address of a specific NIC card never changes,
unlike its IP address which can be assigned via DHCP server or hard-coded to
various addresses over time.
5.3.4
Port Filtering
Choose
Advanced
>
Port Filtering
to display the following page.