Set Up Mac Filtering; Set Up Port Filtering - SURFboard SBG6700-AC User Manual

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. From any web manager screen, click the Advanced menu button on the SBG6700-AC Web
Manager main menu bar.
2. Click MAC Filtering from the Advanced submenu options list to display the Advanced MAC
Filtering 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. To delete a MAC address, click on the MAC address in the MAC Address list and then click
Remove MAC Address button.
Repeat for each MAC Address that you want to remove from the list.
8. Click Clear All button to delete all MAC addresses from the MAC Address list.

Set Up Port Filtering

You can use port filtering to define port filters to prevent all network devices from sending
outgoing TCP/UDP traffic to the WAN on specific IP ports. By specifying a starting and ending
port range, you can determine what TCP/UDP traffic is allowed out to the WAN on a per-port
basis.
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Chapter 8: Protecting & Monitoring Your Wireless Network
Figure 51: Set Up MAC Filters Screen
SURFboard SBG6700-AC Wireless Gateway User Guide
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