Wireless Security
Because WLAN data is transmitted using radio signals, it may be possible for an unauthorized
person to access your WLAN unless you prevent them from doing so. To prevent unauthorized
eavesdropping of data transmitted over your LAN, you must enable wireless security. The default
SBG901 settings neither provide security for transmitted data nor protect network data from
unauthorized intrusions.
The SBG901 provides the following wireless security measures, which are described on the
To prevent unauthorized eavesdropping, you must encrypt data transmitted over the wireless
interface using
one
of the following:
•
If all of your wireless clients support Wi-Fi Protected Access (WPA or WPA2) encryption,
Motorola recommends using WPA2. Otherwise, configure a Wired Equivalency Privacy
(WEP) key on the SBG901 and each WLAN client.
•
To protect the wireless LAN from unauthorized intrusions (see
), you can do one or both of the following:
Restrict WLAN access to computers having known MAC addresses
Enable closed network operation by disabling SSID broadcasting
Port Forwarding
The SBG901 opens logical data ports when a computer on its LAN sends data, such as e-mail
messages or web data, to the Internet. A logical data port is different from a physical port, such
as an Ethernet port. Data from a protocol must go through certain data ports.
Some applications, such as games and video conferencing, require multiple data ports. If you
enable NAT, this can cause problems because NAT assumes that data sent through one port will
return to the same port. You may need to configure port forwarding to run applications with
special requirements.
To configure port forwarding, you must specify an inbound (source) port or range of ports. The
inbound port opens only when data is sent to the inbound port and closes again after a specified
time elapses with no data sent to it. You can configure up to 32 port forwarding entries using the
Advanced Port Forwarding Page.
1 Introduction
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This document is uncontrolled pending incorporation in PDM
Summary of Contents for SURFboard SBG901
Page 1: ...Motorola SURFboard SBG901 Wireless Cable Modem Gateway User Guide ...
Page 46: ...3 Basic Configuration 46 This document is uncontrolled pending incorporation in PDM ...
Page 78: ...8 Parental Control Pages 78 This document is uncontrolled pending incorporation in PDM ...
Page 96: ...9 Wireless Pages 96 This document is uncontrolled pending incorporation in PDM ...
Page 100: ...11 Contact Us 100 This document is uncontrolled pending incorporation in PDM ...
Page 104: ...A Specifications 104 This document is uncontrolled pending incorporation in PDM ...
