User's Manual

SR804N Cable Modem User Manual

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.