Mac Filtering; Port Filtering - Motorola MG7550 User Manual

This page allows you to configure the CM/RG to prevent local PCs from getting
access to the WAN by specifying those IP addresses that should be filtered.
By entering starting and ending IP address ranges, you can configure which local
PCs are denied access to the WAN. Note that you only need to enter the LSB
(Least-significant byte) of the IP address; the upper bytes of the IP address are set
automatically from the CM/RG IP address. To activate the IP address filter, you must
also check the "enable" box and click Save. The enable box allows you to store filter
settings commonly used but not have them active.

5.3.3 MAC Filtering

Choose Advanced Router > MAC Filtering to display the following page.
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 Router> Port Filtering to display the following page.
MG7550 Cable Modem User Manual
Figure 19 IP Filtering configuration
Figure 20 MAC Filtering configuration
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