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Advanced Pages • Advanced Port Filtering Page
Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways • User Guide
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570280-001-a
Advanced Port Filtering Page
This page 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 PCs, and this setting is not IP
address or MAC address specific. For example, to block all PCs on the private LAN from
accessing HTTP sites (or “web surfing”), set the “Start Port” to 80, “End Port” to 80,
“Protocol” to TCP, select
Enabled
, and then click
Apply.
Field Descriptions for the Advanced Port Filtering Page
Field
Description
Start Port
Enter the starting port number.
End Port
Enter the ending port number.
Protocol
Select
TCP
,
UDP
, or
Both
from the drop-down list.
Enabled
Select for each port that you want to activate the IP port filters.
