![Arris SURFboard SBG6400 Скачать руководство пользователя страница 78](http://html1.mh-extra.com/html/arris/surfboard-sbg6400/surfboard-sbg6400_user-manual_2976108078.webp)
Gateway Configuration Screen Definitions
SURFboard SBG6400 Wireless Gateway
•
User Guide
67
365-095-26377 x.3 Copyright 2015 ARRIS Enterprises, Inc. All Rights Reserved.
MAC Filtering
MAC filtering allows you to define up to 20 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.
Figure 64 – Advanced MAC Filtering Screen
Table 14: Advanced MAC Filtering - Field Descriptions
Field
Description
Add MAC Address
Enter the MAC address for the computer you want to block
and click Add MAC Address button.
Repeat for up to 20 MAC addresses.
Remove MAC Address
Enter the MAC address filter that you want to delete block
and click Remove MAC Address button.
Clear All button
Deletes all of your MAC Address filters.
Port Filtering
Port filtering allows you to define port filters to prevent all devices from sending outgoing
TCP/UDP traffic to the WAN on specific IP port numbers. 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.
Note
: The specified port ranges are blocked for ALL computers, and this setting is not IP address or
MAC address specific. For example, if you want to block all computers on your home network from
accessing HTTP sites (or web surfing), you would create the following port filter and then click
Apply
.
•
Set Start Port to 80
•
Set End Port to 80