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Page 36 / 78 Scroll up to view Page 31 - 35
B
Basic Pages • Basic DHCP Page
Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways • User Guide
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570280-001-a
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.
CAUTION
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
Description
DHCP Server
Select
Yes
to enable the SBG941 DHCP Server.
Select
No
to disable the SBG941 DHCP Server.
Starting Local Address
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.
Number of CPEs
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
.
Lease Time
Sets the time in seconds that the SBG941 DHCP server leases an
IP address to a client. The default is 3600 seconds (60 minutes).
Page 37 / 78
B
Basic Pages • Basic DDNS Page
Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways • User Guide
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DHCP Clients
Displays DHCP client device information.
WINS Addresses
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
Description
DDNS Service
Select
Disable
or
wwwDynDNS.org
to enable the DDNS
Service.
User Name
Enter your DynDNS user name.
Password
Enter your DynDNS password.
Host Name
Enter your DDNS host name.
IP Address
Lists IP information.
Status
Displays the DDNS service status:
enabled
or
disabled
When done, click
Apply
to save your changes.
Page 38 / 78
B
Basic Pages • Basic Backup Page
Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways • User Guide
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570280-001-a
Basic Backup Page
This page allows you to save your current SBG941 configuration settings locally on your
computer or restore previously saved configurations.
Field Descriptions for the Basic Backup Page
Field
Description
Restore
Lets you restore a previously saved configuration.
Backup
Lets you create a backup copy of the current configuration.
Restoring Your SBG941 Configuration
1.
Type the path with the file name where the backup file is located on your computer,
or click
Browse
to locate the file.
2.
Click
Restore
to recreate your previously saved SBG941 settings.
Backing Up Your SBG941 Configuration
1.
Type the path with the file name where you want to store your backup file on your
computer, or click
Browse
to locate the file.
2.
Click
Backup
to create a backup of your SBG941 settings.
Page 39 / 78
B
Advanced Pages • Advanced Options Page
Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways • User Guide
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7
Advanced Pages
The SBG941 Advanced Pages allow you to configure the advanced features of the
SBG941:
•
IP Filtering
•
MAC Filtering
•
Port Filtering
•
Port Forwarding
•
Port Triggers
•
DMZ Host
•
Routing Information Protocol (RIP) Setup
You can click any Advanced submenu option to view or change the advanced
configuration information for that option.
Advanced Options Page
This page allows you to set the operating modes for adjusting how the SBG941 device
routes IP traffic.
Page 40 / 78
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Advanced Pages • Advanced Options Page
Motorola SURFboard SBG941 Series Wireless Cable Modem Gateways • User Guide
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Field Descriptions for the Advanced Options Page
Field
Description
WAN Blocking
Prevents the SBG941 Configuration Manager or the PCs
behind it from being visible to other computers on the SBG941
WAN.
Select
Enable
to turn on this option.
IPsec PassThrough
Enables the IPsec Pass-Through protocol to be used through
the SBG941 Configuration Manager so that a VPN device (or
software) may communicate properly with the WAN.
Select
Enable
to turn on this option.
PPTP PassThrough
Enables the Point-to-Point Tunneling Protocol (PPTP)
Pass-Through protocol to be used through the SBG941
Configuration Manager so that a VPN device (or software) may
communicate properly with the WAN.
Select
Enable
to turn on this option.
Remote Config Management
Allows remote access to the SBG941 Configuration Manager.
For example, in the browser URL window, type
http://WanIPAddress:8080/
to access the SBG941
Configuration Manager remotely.
Select
Enable
to turn on this option.
Multicast Enable
Allows multicast-specific traffic (denoted by a specific address)
to be passed to and from the PCs on the private network
behind the configuration manager.
Select
Enable
to turn on this option.
UPnP Enable
Turns on the Universal Plug and Play protocol (UPnP) agent in
the configuration manager. If you are running a CPE (client)
application that requires UPnP, select this box.
Select
Enable
to turn on this option.
Rg PassThrough
Disables NAT operation allowing all client computers to act as
passthrough clients.
Select
Enable
to turn on this option.
PassThrough Mac Addresses
Specifies up to 32 computers as passthrough clients not
subject to NAT, using their MAC addresses.
To enable this feature, your cable operator may need to
provide additional public IP addresses.
When done, click
Apply
to save your changes.

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