Protecting & Monitoring Your Wireless Network
SURFboard® SBG6900-AC Wireless Cable Modem & Router
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User Guide
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365-095-27293 x.1
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3.
Enter the least significant byte of the starting IP address for the range you are setting up in
the Start Address field.
4.
Enter the least significant byte of the ending IP address for the range you are setting up in
the End Address field.
5.
Select Enabled to activate the IP address filter.
6.
Repeat steps 3 thru 5 for each additional range of IP addresses that you want to block
Internet access.
7.
Click Apply to create your IP filters.
Set Up MAC Filtering
MAC filtering allows you to define up to twenty Media Access Control (MAC) address filters to
prevent computers from sending outgoing TCP/UDP traffic to the WAN via their MAC addresses.
This is useful because the MAC address of a specific NIC card never changes, unlike its IP
address, which can be assigned via the DHCP server or hard-coded to various addresses over
time.
To configure MAC filters:
1.
Click Advanced on the SBG6900-AC Main Menu bar.
2.
Click MAC Filtering from the Advanced submenu options.
Figure 45 – Set Up MAC Filters Screen
3.
Enter the MAC address for the computer you want to block.
4.
Enter the least significant byte of the starting IP address for the range you are setting up.
5.
Click Add MAC Address.
6.
Repeat steps 3 through 5 to add up to 20 MAC addresses.
7.
Click on the MAC address in the MAC Address list that you want to delete and then click
Remove MAC Address button.
8.
Repeat for each MAC Address that you want to remove from the list.
9.
Click Clear All button to delete all MAC addresses from the address list.