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Page 66 / 78 Scroll up to view Page 61 - 65
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Wireless Pages • Wireless 802.11 Access Control Page
Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways • User Guide
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570280-001-a
Wireless 802.11 Access Control Page
This page allows you to configure the Access Control to the AP as well as status on the
connected clients.
Field Descriptions for the Wireless 802.11 Access Control Page
Field
Description
MAC Restrict Mode
Selects whether wireless clients with the specified MAC
address are allowed or denied wireless access.
Select
Disabled
to allow all clients.
MAC Address
A list of wireless client MAC addresses to allow or deny based
on the Restrict Mode setting. Valid input MAC address formats
are XX:XX:XX:XX:XX:XX and XX-XX-XX-XX-XX-XX.
Connected Clients
Lists connected wireless clients. When a client connects
(associates) to the network, the client is added to the list; when
a client leaves (disassociates) from the network, the client is
removed from the list. For each client, the age (in seconds),
estimated average receive signal strength (in dBm), IP address,
and host name are presented. The age is the amount of time
elapsed since data was transmitted to or received from the
client.
Page 67 / 78
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Wireless Pages • Wireless 802.11 Wi-Fi Multimedia Page
Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways • User Guide
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Wireless 802.11 Wi-Fi Multimedia Page
This page allows you to configure the Wi-Fi Multimedia (WMM) Quality of Service (QoS).
Field Descriptions for the Wireless 802.11 Wi-Fi Multimedia Page
Field
Description
WMM Support
Sets WMM support to Auto, On, or Off.
If enabled (Auto or On), the WME Information Element is included
in beacon frame.
No-Acknowledgement
Sets No-Acknowledgement support to On or Off.
When enabled, acknowledgments for data are not transmitted.
Power Save Support
Sets Power Save support to On or Off.
When Power Save is enabled, the AP queues packets for STAs are
in Power Save mode. Queued packets are transmitted when the
station (STA) notifies the AP that it has left Power-Save mode.
EDCA AP Parameters
Specifies the transmit parameters for traffic transmitted from the
AP to the STA in four Access Categories:
•
Best Effort (AC_BE)
•
Background (AC_BK)
Page 68 / 78
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Wireless Pages • Wireless 802.11 Wi-Fi Multimedia Page
Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways • User Guide
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570280-001-a
•
Video (AC_VI)
•
Voice (AC_VO)
EDCA AP Parameters
(continued)
Transmit parameters include Contention Window (CWmin and
CWmax), Arbitration Inter Frame Spacing Number (AIFSN), and
Transmit Opportunity Limit (TXOP Limit).
There are also two AP-specific settings: Admission Control and
Discard Oldest First. Admission control specifies if admission
control is enforced for the Access Categories. Discard Oldest First
specifies the discard policy for the queues. On discards the oldest
first; Off discards the newest first.
EDCA STA Parameters
Specifies the transmit parameters for traffic transmitted from the
STA to the AP in four Access Categories:
•
Best Effort (AC_BE)
•
Background (AC_BK)
•
Video (AC_VI)
•
Voice (AC_VO)
Transmit parameters include Contention Window (CWmin and
CWmax), Arbitration Inter Frame Spacing Number (AIFSN), and
Transmit Opportunity Limit (TXOP Limit).
Page 69 / 78
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Wireless Pages • Wireless 802.11 Bridging Page
Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways • User Guide
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Wireless 802.11 Bridging Page
This page allows you to configure the WDS features.
Field Descriptions for the Wireless 802.11 Bridging Page
Field
Description
Wireless Bridging
Enables or disables wireless bridging.
Remote Bridges
Table of remote bridge MAC addresses authorized to establish a
wireless bridge. Up to four remote bridges may be connected.
Typically, you will also have to enter your AP’s MAC address on
the remote bridge.
Page 70 / 78
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Wireless Pages • Setting Up Your Wireless LAN
Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways • User Guide
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570280-001-a
Setting Up Your Wireless LAN
You can use the SBG941 as an access point for a wireless LAN (WLAN) without
changing its default settings.
To enable security for your WLAN, you can do the following on the SBG941:
•
Encrypt wireless LAN transmissions
•
Restrict wireless LAN access to further prevent unauthorized WLAN intrusions using
the
Wireless 802.11 Access Control Page
.
CAUTION
Never provide your SSID, WPA or WEP passphrase, or WEP key to anyone who is not authorized
to use your WLAN.
Connect at least one computer to the SBG941 Ethernet port to perform configuration.
Do not attempt to configure the SBG941 over a wireless connection.
You need to configure each wireless client (station) to access the SBG941 LAN as
described in
Installing Wireless Clients
.
Another step to improve wireless security is to place wireless components away from
windows. This decreases the signal strength outside the intended area.
Encrypting Wireless LAN Transmissions
To prevent unauthorized viewing of data transmitted over your WLAN, you must encrypt
your wireless transmissions. Choose one:
Encrypting Wireless LAN Transmissions
Configure on the SBG941
Required on Each Wireless Client
If all of your wireless clients support
Wi-Fi Protected Access (WPA),
Motorola recommends configuring
WPA on the SBG941
If you use a local, pre-shared key (WPA-PSK)
passphrase, you must configure the identical passphrase
to the SBG941 on each wireless client. Home and small-
office settings typically use a local passphrase.
Otherwise, configure WEP on the
SBG941
You must configure the identical WEP key to the
SBG941 on each wireless client.
If all of your wireless clients support WPA encryption, Motorola recommends using WPA
instead of WEP.
For new wireless LANs, Motorola recommends purchasing client adapters that support
WPA encryption.

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