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Device. This device is designed to operate with two internal antennas as part of the printed wiring board. The top facing antenna has a maximum gain of 2dBi and the front facing antenna has a maximum gain of 4dBi. To reduce potential radio interference to other users, the antenna types and their gains were so chosen that the equivalent isotropically radiated power (e.i.r.p) is not more than that permitted for successful communications. This Class B digital apparatus complies with Canadian ICES-003. Cet appareil numrique de la classe B est conforme la norme NMB-003 du Canada.
IC RADIATION EXPOSURE STATEMENT
IMPORTANT NOTE: This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20 cm (8 inches) between the radiator and your body.
Caring for the Environment by Recycling When you see this symbol on a Motorola product, do not dispose of the product with residential or commercial waste. Recycling your Motorola Equipment Please do not dispose of this product with your residential or commercial waste. Some countries or regions, such as the European Union, have set up systems to collect and recycle electrical and electronic waste items. Contact your local authorities for information about practices established for your region. If collection systems are not available, call Motorola Customer Service for assistance. Please visit www.motorola.com/recycle for instructions on recycling.
International Declaration of Conformity
We, Motorola, Inc., 101 Tournament Drive, Horsham, PA 19044, U.S.A., declare under our sole responsibility that the SBG941 SURFboard Wireless Cable Modem Gateway Series to which this declaration relates is in conformity with one or more of the following standards:
EN60950-1 EN61000-3-2 EN EN61000-3-3 EN 301 489-1/-17 EN50385
The following provisions of the Directive(s) of the Council of the European Union: EMC Directive 2004/108/EC
Low Voltage Directive 2006/95/EC R&TTE 1999/5/EC
Safety and Regulatory Information Introduction Inside the Box..... 1 Minimum System Requirements.... 2 Contact Information.... 2 Product Overview Front Panel Overview..... 3 Rear Panel Overview.... 4 MAC Label Overview..... 5 Installing the Modem Cabling the SBG941.... 6 Cabling the SBG941U..... 7 Connecting to the Internet.... 8 Configuring TCP/IP in Windows XP... 8 Configuring TCP/IP in Windows Vista.... 9 Verifying the IP Address in Windows XP... 10 Verifying the IP Address in Windows Vista.... 10 Renewing Your IP Address in Windows XP or Windows Vista... 11 Setting Up a Wi-Fi Network.... 11 Wall Mounting the Modem.... 11 Wall Mounting Template.... 12 Basic Configuration Starting the SBG941 Configuration Manager (CMGR)... 14 Changing the SBG941 Default Password... 15 SBG941 Menu Options Bar.... 16 Getting Help..... 17 Gaming Configuration Guidelines... 18 Configuring the Firewall for Gaming.... 18 Configuring Port Triggers.... 18 Configuring a Gaming DMZ Host.... 18 Exiting the SBG941 Configuration Manager.... 19
Inside the Box
Before installing the SBG941, verify that the following items are included in the box. If you obtained the modem from your service provider, some of the included items may be different.
Item Power supply Description Provides power via an AC electrical outlet
10/100Base-T Ethernet cable Software License & Regulatory Card SBG941U Installation CDROM SBG941 Install Sheet
Standard Cat 5, or higher, cable for connecting to the network Contains software license, warranty, and safety information for the SBG941 Contains the SBG941U Installation Assistant, and this user guide Included with SBG941U models only. Provides basic information for setting up the SBG941
Introduction Inside the Box Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways User Guide 570280-001-a 1
You will need a 75-ohm coaxial cable with F-type connectors to connect the SBG941 to the nearest cable outlet. If a TV is connected to the cable outlet, you may need a 5 to 900 MHz RF splitter and two additional coaxial cables to use the TV and SBG941. Note: This product is also designed for IT power systems with phase to phase voltage 230VAC input.
Minimum System Requirements
The SBG941 is compatible with the following operating systems:
Windows XP Service Pack 2 or later Windows Vista Service Pack 1 or later MAC 10.4
For information about Motorola consumer cable products, education, and support, visit the Motorola support website at: http://broadband.motorola.com/consumers/support
Introduction Minimum System Requirements Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways User Guide 570280-001-a 2
Front Panel Overview
The SBG941 front panel contains indicator lights and the WPS button, which is used to configure a Wi-Fi Protected Security (WPS)-enabled device so that it automatically connects to the SBG941 wireless network.
The SBG941 front panel LED indicators provide the following status information for power, communications, and errors:
LED 1 POWER 2 RECEIVE 3 SEND 4 ONLINE 5 LINK Flashing Not applicable LED does not flash Scanning for a downstream (receive) channel connection Scanning for an upstream (send) channel connection Scanning for Internet connection Not applicable LED does not flash On Green: Power is properly connected Green: Downstream channel is connected Green: Upstream channel is connected Green: Startup process completed Green: A device is connected to the Ethernet (10Base-T) or Fast Ethernet (100Base-T), and/or USB port.
Renewing Your IP Address in Windows XP or Windows Vista
1. Open a command prompt window. A. From the Windows Taskbar, click Start to open the Start menu. B. Select Run to open the Run window. C. Type cmd in the Open entry box and click OK. 2. Type ipconfig /renew and press ENTER. A valid IP address should appear indicating that Internet access is available. 3. Type exit and press ENTER to close the command prompt window. If, after performing this procedure, your computer cannot access the Internet, call your cable provider for help.
Setting Up a Wi-Fi Network
Do the following to set up a Wi-Fi network using the WPS button on the modem: 1. If necessary, power on the modem. 2. Power on the WPS-enabled devices you want to have access to the network, such as a PC or router. The Wi-Fi network will automatically detect the WPS devices. 3. Press WPS button on the modem. 4. If applicable, press WPS button on the other WPS devices.
Wall Mounting the Modem
If you choose to wall mount the modem, do the following before starting:
Locate the unit as specified by the local or national codes governing residential or business cable TV and communications services. Follow all local standards for installing a network interface unit/network interface device (NIU/NID). Make sure the AC power plug is disconnected from the wall outlet and all cables are removed from the back of the modem before starting the installation. Determine if you are mounting the modem horizontally or vertically. Use M3.5 x 38 mm (#6 x 1 inch) screws with a flat underside and maximum screw head diameter of 9.0 mm to mount the modem. See the screw mounting dimensions below to properly mount the modem:
Installing the Modem Setting Up a Wi-Fi Network Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways User Guide 570280-001-a 11
If possible, mount the modem to concrete, masonry, a wooden stud, or some other solid wall material. Use anchors if necessary (for example, if you must mount the unit on drywall).
CAUTION Before drilling holes, check the structure for potential damage to water, gas, or electrical lines.
1. Drill the holes to a depth of at least 1 inches (3.8 cm). There must be.10 inches (2.5 mm) between the wall and the underside of the screw head. 2. After mounting, reconnect the coaxial cable and re-plug the power cord. 3. Properly route the cables to avoid any safety hazards.
Wall Mounting Template
You can print the following page to use as a wall mounting template. After mounting the modem, do the following: 1. Reconnect the coaxial cable input and Ethernet connection. 2. Plug the power cord into the +12VDC Power connector on the modem and the electrical outlet. 3. Arrange the cables appropriately to prevent any safety hazards.
Changing the SBG941 Default Password
From the SBG941 Status page, click Security submenu option to change the default password. Complete each field, then click Apply when done to save your changes.
For the password change username, type a new user name. The password is case-sensitive. For the current username password, type your old password.
Basic Configuration Changing the SBG941 Default Password Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways User Guide 570280-001-a 15
Select Yes or No to reset the user name and password to the default factory settings.
Note: You must login with the default user name, admin, and password, motorola, after applying this change. All entries are case-sensitive.
SBG941 Menu Options Bar
The SBG941 Menu Options bar is displayed along the top of the SBG941 Configuration Manager window. When a menu option is selected, a top-level page for that option is displayed.
Configuration Manager Menu Options Bar
Menu Option Pages Status Function Provides information about the SBG941 hardware and software, MAC address, cable modem IP address, serial number, and related information. Additional pages provide diagnostic tools and allow you to change your SBG941 user name and password. Views and configures SBG941 IP-related configuration data, including Network Configuration, WAN Connection Type, DHCP, and DDNS. The Backup option allows you to save your SBG941 configuration on your computer. Configures and monitors how the SBG941 routes IP traffic Configures and monitors the SBG941 firewall
Basic Configuration SBG941 Menu Options Bar Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways User Guide 570280-001-a 16
Parental Control Wireless Logout Configures and monitors the SBG941 parental control feature Configures and monitors SBG941 wireless networking features Exits the SBG941 Configuration Manager
To prevent unauthorized configuration, immediately change the default password when you first configure your Motorola SBG941.
To retrieve help information for any menu option, click help on that page. You can use the Windows scroll bar to view additional items on the help screens. See the sample Firewall help page shown below.
Basic Configuration Getting Help Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways User Guide 570280-001-a 17
Gaming Configuration Guidelines
The following provides information about configuring the SBG941 firewall and DMZ for gaming.
Configuring the Firewall for Gaming
By default, the SBG941 firewall is enabled. As recommended, if you keep the firewall enabled, refer to the games documentation to ensure that the necessary ports are open for use by that game. The pre-defined SBG941 firewall policies affect Xbox LIVE as follows:
On the Firewall Web Content Filter Page, you may need to disable Firewall Protection and IP Flood Detection.
Configuring Port Triggers
Because the SBG941 has pre-defined port triggers for games using any of the following applications, no user action is required to enable them:
ALG for MSN MSN Games by Zone.com
You may need to create custom port triggers to enable other games to operate properly. To create custom port triggers, see the Advanced Port Triggers Page.
Configuring a Gaming DMZ Host
CAUTION The gaming DMZ host is not protected by the firewall. It is open to communication or hacking from any computer on the Internet. Consider carefully before configuring a device to be in the DMZ.
Some games and game devices require:
The use of random ports The forwarding of unsolicited traffic
For example, to connect a PlayStation2 for PS2 online gaming, designate it as the gaming DMZ host because the ports required vary from game to game. For these games, Motorola recommends configuring the gaming computer or device as a gaming DMZ device.
Basic Configuration Gaming Configuration Guidelines Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways User Guide 570280-001-a 18
To configure a gaming DMZ device, on the Basic DHCP Page: 1. Reserve a private IP address for the computer or game device MAC address. 2. Designate the device as a DMZ device. You can reserve IP addresses for multiple devices, but only one device at a time can be designated as the gaming DMZ.
Exiting the SBG941 Configuration Manager
To logoff and close the SBG941 Configuration Manager, click Logout on the SBG941 Menu Options bar.
Basic Configuration Exiting the SBG941 Configuration Manager Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways User Guide 570280-001-a 19
The SBG941 Status pages provide information about the SBG941 hardware and software, MAC address, cable modem IP address, serial number, and related information. You can also monitor your cable system connection. Additional pages provide diagnostic tools and allow you to change your SBG941 user name and password. You can click any Status submenu option to view or change the status information for that option.
Status Software Page
Testing Network Connectivity with the SBG941
To check connectivity between the SBG941 and other devices on the SBG941 LAN, perform the following test: 1. Select Ping from the Select Utility drop-down list. 2. Enter the IP address of the computer you want to Ping in the Target field. 3. Enter the data packet size in bytes in the Ping Size field. 4. Enter the number of ping attempts in the No. of Pings field. 5. Enter the time (in milliseconds) between Ping send operations in the Ping Interval field. 6. Click Start Test to begin the Ping operation. Ping results display in the Results pane.
Status Pages Status Diagnostics Page Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways User Guide 570280-001-a 23
7. You can click Abort Test at any time during the test to stop the Ping operation. 8. Repeat steps 2 through 6 for each device you want to ping. When done, click Clear Results to delete the Ping results in the Results pane.
Traceroute allows you to map the network path from the SBG941 Configuration Manager to a public host. Selecting Traceroute from the Select Utility drop-down list presents alternate controls for the Traceroute utility.
1. Enter the IP address or Host Name of the computer you want to target for the Traceroute operation in the Target field. 2. Enter the maximum number of hops that the Traceroute operation performs before stopping in the Max Hops field. 3. Enter the data packet size in bytes in the Data Size field. 4. Set the base UDP port number used by Traceroute in the Base Port field. The default is 33434. If a UDP port is not available, this field can be used to specify an unused port range. 5. In the Resolve Host field, select On to list the names of hosts found during the Traceroute operation, or select Off to list only the hosts IP addresses. 6. After entering the Traceroute parameters, click Start Test to begin the Traceroute operation. The Traceroute results will display in the Results pane. When done, click Clear Results to delete the Traceroute results in the Results pane.
Status Pages Status Diagnostics Page Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways User Guide 570280-001-a 24
Status Event Log Page
This page lists the critical system events in chronological order. A sample Event log is shown below:
Expires Release WAN Lease Renew WAN Lease WAN Connection Type
Host Name Domain Name MTU Size Spoofed MAC Address
When done, click Apply to save your changes.
Basic Pages Basic Setup Page Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways User Guide 570280-001-a 27
Basic DHCP Page
This page allows you to configure and view the status of the optional internal SBG941 DHCP (Dynamic Host Configuration Protocol) server for the LAN.
Do not modify these settings unless you are an experienced network administrator with strong knowledge of IP addressing, subnetting, and DHCP.
Field Descriptions for the Basic DHCP Page
Field DHCP Server Starting Local Address Description Select Yes to enable the SBG941 DHCP Server. Select No to disable the SBG941 DHCP Server. Enter the starting IP address to be assigned by the SBG941 DHCP server to clients in dotted-decimal format. The default is 192.168.0.2. Sets the number of clients for the SBG941 DHCP server to assign a private IP address. There are 245 possible client addresses. The default is 245. Sets the time in seconds that the SBG941 DHCP server leases an IP address to a client. The default is 3600 seconds (60 minutes).
Number of CPEs
Basic Pages Basic DHCP Page Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways User Guide 570280-001-a 28
DHCP Clients WINS Addresses Displays DHCP client device information. Specifies up to three Windows Internet Name Service (WINS) Server Addresses.
When done, click Apply to save your changes. To renew a DHCP client IP address, choose Select and then click Force Available.
Basic DDNS Page
This page allows you to set up the Dynamic Domain Name System (DDNS) service. The DDNS service allows you to assign a static Internet domain name to a dynamic IP address, which allows your SBG941 to be more easily accessed from various locations on the Internet.
Field Descriptions for Basic DDNS Page
Field DDNS Service User Name Password Host Name IP Address Status Description Select Disable or wwwDynDNS.org to enable the DDNS Service. Enter your DynDNS user name. Enter your DynDNS password. Enter your DDNS host name. Lists IP information. Displays the DDNS service status: enabled or disabled
Basic Pages Basic DDNS Page Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways User Guide 570280-001-a 29
Remote Config Management
PassThrough Mac Addresses
Advanced Pages Advanced Options Page Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways User Guide 570280-001-a 32
Advanced IP Filtering Page
This page allows you to define which local PCs will be denied access to the SBG941 WAN. You can configure IP address filters to block Internet traffic to specific network devices on the LAN by entering starting and ending IP address ranges. Note: Only enter the LSB (Least-significant byte) of the IP address; the upper bytes of the IP address are set automatically from the IP address for the SBG941 Configuration Manager.
Field Descriptions for the Advanced IP Filtering Page
Field Start Address Description Enter the starting IP address range of the computers for which you want to deny access to the SBG941 WAN. Only enter the least significant byte of the IP address. Enter the ending IP address range of the computers you want to deny access to the SBG941 WAN. Only enter the least significant byte of the IP address. Activates the IP address filter, when selected. Select Enabled for each range of IP addresses you want to deny access to the SBG941 WAN.
When done, click Apply to activate and save your settings.
Advanced Pages Advanced IP Filtering Page Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways User Guide 570280-001-a 33
Advanced MAC Filtering Page
This page allows you to define up to twenty Media Access Control (MAC) address filters to prevent PCs 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.
Field Descriptions for the Advanced MAC Filtering Page
Field MAC Addresses Description Media Access Control address a unique set of 12 hexadecimal digits assigned to a PC during manufacturing.
Setting a MAC Address Filter
1. Enter the MAC address in the MAC Addresses field for the PC you want to block. 2. Click Add MAC Address. 3. Repeat above steps for up to twenty MAC addresses.
Field Descriptions for the Advanced RIP Setup Page
Field RIP Enable Description Enables or disables the RIP protocol. This protocol helps the router dynamically adapt to the changes in the network. RIP is obsolete since newer routing protocols, such as OSPF and ISIS, have been introduced. If enabled, a plain text password or a shared key authentication is added to the RIP packet in order for the CPE and the wireless router to authenticate each other.
Advanced Pages Advanced Routing Information Protocol Setup Page Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways User Guide 570280-001-a 39
RIP Authentication Key Used to encrypt the plain text password that is enclosed in each RIP packet. If you are using the shared key authentication in RIP, you will need to provide a key. An unsigned 8-bit field in the RIP packet. This field identifies the key used to create the authentication data for the RIP packet, and it also indicates the authentication algorithm. Determines how long before a RIP packet is sent to the CPE. Location where the RIP packet is sent to update the routing table in your CPE. Specifies which CPE you want to receive the RIP packet.
RIP Authentication Key ID
RIP Reporting Interval RIP Destination IP Address RIP Destination IP Subnet Mask
Advanced Pages Advanced Routing Information Protocol Setup Page Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways User Guide 570280-001-a 40
The SBG941 Firewall Pages allow you to configure the SBG941 firewall filters and firewall alert notifications. The SBG941 firewall protects the SBG941 LAN from undesired attacks and other intrusions from the Internet. It provides an advanced, integrated stateful-inspection firewall supporting intrusion detection, session tracking, and denial-of-service attack prevention. The firewall:
Maintains state data for every TCP/IP session on the OSI network and transport layers. Monitors all incoming and outgoing packets, applies the firewall policy to each one, and screens for improper packets and intrusion attempts. Provides comprehensive logging for all: User authentications Rejected internal and external connection requests Session creation and termination Outside attacks (intrusion detection)
You can configure the firewall filters to set rules for port usage. For information about choosing a predefined firewall policy template, see the Firewall Pages. You can click any Firewall submenu option to view or change the firewall configuration information for that option. For information about how the firewall can affect gaming, see Gaming Configuration Guidelines. The predefined policies provide outbound Internet access for computers on the SBG941 LAN. The SBG941 firewall uses stateful-inspection to allow inbound responses when there already is an outbound session running that corresponds to the data flow. For example, if you use a web browser, outbound HTTP connections are permitted on port 80. Inbound responses from the Internet are allowed because an outbound session is established. When required, you can configure the SBG941 firewall to allow inbound packets without first establishing an outbound session. You also need to configure a port forwarding entry on the Advanced Port Forwarding Page or a DMZ client on the Advanced DMZ Host Page.
WPA WPA-PSK WPA2 WPA2-PSK
Wireless Pages Wireless 802.11 Primary Network Page Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways User Guide 570280-001-a 51
WPA/WPA2 Encryption When using WPA or WPA2 authentication, these WPA encryption modes can be set: TKIP, AES, or TKIP + AES. AES (Advanced Encryption Standard) provides the strongest encryption, while TKIP (Temporal Key Integrity Protocol) provides strong encryption with improved compatibility. The TKIP + AES mode allows both TKIP and AES-capable clients to connect. Sets the WPA Pre-Shared Key (PSK). This is either an 8-63 ASCII character string or a 64-digit hex number. This is specified when the Network Authentication method is WPAPSK. Show Key - When selected, the WPA Pre-Shared Key is displayed. Sets the RADIUS server IP address to use for client authentication using the dotted-decimal format (xxx.xxx.xxx.xxx). Sets the UDP port number of the RADIUS server. The default is 1812. Sets the shared secret for the RADIUS connection. The key is a 0 to 255 character ASCII string. Sets the WPA Group Rekey Interval in seconds. Set to zero to disable periodic rekeying. The re-authentication interval is the amount of time the wireless router can wait before re-establishing authentication with the CPE. WEP Encryption enables or disables Wired Equivalent Privacy encryption. The WEP protocol uses the Shared Key Authentication protocol where the CPE sends an authentication request to the access point. Then the access point sends a challenge text to the CPE. The CPE uses either the 64-bit or 128-bit key to encrypt the challenge text and sends the encrypted text to the access point. The access point decrypts the encrypted text and then compares the decrypted message with the original challenge text. If they are the same, the access point lets the CPE connect; if it doesnt match, then the access point does not let the CPE connect.
WPA Pre-Shared Key Show Key
RADIUS Port RADIUS Key Group Key Rotation Interval WPA/WPA2 Re-auth Interval
WEP Encryption Shared Key Authentication
Wireless Pages Wireless 802.11 Primary Network Page Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways User Guide 570280-001-a 52
802.1x Authentication This authentication is used in addition to WEP. 802.1x Authentication. It is a much stronger type of authentication than WEP. Sets the static WEP keys when WEP encryption is enabled. Enter five ASCII characters or 10 hexadecimal digits for a 64-bit key. Enter 13 ASCII characters or 26 hexadecimal digits for a 128-bit key. When both WPA encryption and WEP encryption are enabled, only keys 2 and 3 are available for WEP encryption. Selects the encryption (transmit) key when WEP encryption is enabled. Sets the text to use for WEP key generation.
Network Key 1 4
Wireless Pages Wireless 802.11 Advanced Page Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways User Guide 570280-001-a 57
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 MAC Restrict Mode Description Selects whether wireless clients with the specified MAC address are allowed or denied wireless access. Select Disabled to allow all clients. 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. 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.
Wireless Pages Wireless 802.11 Access Control Page Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways User Guide 570280-001-a 58
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 WMM Support Description Sets WMM support to Auto, On, or Off. If enabled (Auto or On), the WME Information Element is included in beacon frame. Sets No-Acknowledgement support to On or Off. When enabled, acknowledgments for data are not transmitted. 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. Specifies the transmit parameters for traffic transmitted from the AP to the STA in four Access Categories: Best Effort (AC_BE) Background (AC_BK)
No-Acknowledgement Power Save Support
EDCA AP Parameters
Wireless Pages Wireless 802.11 Wi-Fi Multimedia Page Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways User Guide 570280-001-a 59
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. 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).
EDCA STA Parameters
Wireless Pages Wireless 802.11 Wi-Fi Multimedia Page Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways User Guide 570280-001-a 60
Wireless 802.11 Bridging Page
This page allows you to configure the WDS features.
Field Descriptions for the Wireless 802.11 Bridging Page
Field Wireless Bridging Remote Bridges Description Enables or disables wireless bridging. 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 APs MAC address on the remote bridge.
Wireless Pages Wireless 802.11 Bridging Page Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways User Guide 570280-001-a 61
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.
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