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Chapter 3
Configuring the DOCSIS Residential Gateway
38
4042831 Rev A
Configure Dynamic DNS
Use the Setup Advanced Settings -
Dynamic DNS page to configure the Dynamic
Domain Name Service (DDNS). This service provides the residential gateway that
has a variable and frequently changing IP address with a well known host name
resolvable by network applications through standard DNS queries. If you have a
fixed IP address, you don't need to use DDNS. It is useful when you are hosting your
own website, FTP server, or other server behind the device. Before using this feature,
you need to sign up for DDNS service at a supported DDNS service provider.
Setup Basic Settings - Dynamic DNS Page
The following illustration is an example of the Setup Basic Settings - Dynamic DNS
page.
Page 57 / 130
Configure Basic Settings
4042831 Rev A
39
Setup Basic Settings - Dynamic DNS Page Description
The following tables provide a description of the fields within the Setup Basic
Settings - Dynamic DNS page.
Field Name
Description
DDNS Service
Provides option to disable or activate the DDNS feature.
Disable - Select this option to disable this feature.
www.DynDNS.org - Select this option to set up service with a DDNS
service provider. You will need to record the user name, password,
and host name you create when you set up the DDNS service.
User Name
Manually enter the user name you created when you signed up for DDNS
service.
Password
Manually enter the password you created when you signed up for DDNS
service.
Host Name
Manually enter the host name you created when you signed up for DDNS
service.
IP Address
The fixed IP address of your Residential Gateway. The device will advise
the DDNS service of your current WAN (Internet) IP address whenever
the address changes.
Status
Displays the status of the DDNS service connection.
Function Key
Key
Description
Apply
Saves the values you enter into the fields without closing the screen.
Page 58 / 130
Chapter 3
Configuring the DOCSIS Residential Gateway
40
4042831 Rev A
Configure Advanced Settings
This section describes how to configure Advanced settings for the residential
gateway.
Enabling and Disabling Advanced Features
Use the Setup Advanced Settings - Options page to enable or disable advanced
features on your network. When the wireless interface is disabled, the transmitter is
turned off.
Note:
If you are not familiar with the advanced settings detailed in this section,
contact your service provider before you attempt to change any of the residential
gateway default advanced options settings.
Click
Options
in the Advanced Settings section of the Setup page to access the Setup
Advanced Settings - Options page.
Setup Advanced Settings - Options Page
The following illustration is an example of the Setup Advanced Settings - Options
page.
Page 59 / 130
Configure Advanced Settings
4042831 Rev A
41
Setup Advanced Settings - Options Page Description
The following table provides a description of the fields within the Setup Advanced
Settings - Options page.
Note:
If you make changes in the Setup Advanced Settings - Options page, click
Apply
to apply and save your new IP address filter settings.
Field Name
Description
WAN Blocking
Checking this box prevents the residential gateway from being visible
to the WAN. For example, pings to the WAN IP address are not
returned.
IPsec PassThrough
Checking this box allows applications that use IPsec (IP Security) to
pass through the firewall.
PPTP PassThrough
Checking this box allows applications that use Point to Point
Tunneling Protocol (PPTP) to pass through the firewall.
Remote Config
Management
Checking this box enables Remote Configuration Management that
allows the user or network operator to view and/or modify the
gateway set-up parameters from a location on the WAN, as opposed
to the LAN side of the gateway. Access to the set-up parameters is
obtained by using the password to access the WebWizard.
Enable this feature by checking the
Remote Config Management
box
on the Setup Advanced Settings - Options page. To access your
gateway from a remote location, you must also know the WAN IP
address of the gateway. To find the WAN IP address, go to the
Network Configuration page under Basic Settings. You will find the
gateway's WAN IP address list on this page.
Enter the WAN IP address of your gateway into the address field of
any web browser using the following format:
http://xxx.xxx.xxx.xxx:8080 where xxx.xxx.xxx.xxx represents the
WAN IP address of your gateway.
Be sure to follow the syntax exactly, and then click
Go
or press
Enter
.
Your gateway web pages will appear on the remote computer. You
will still need to enter your password to access the Setup pages of
your gateway
Note:
If you choose to enable (check) this feature, be sure to set up a
user password to prevent unauthorized access to your gateway
settings.
Multicast Enable
Checking this box allows multicasts to pass from the WAN side
through to the private network.
UPnP Enable
Checking this box enables Universal Plug and Play features.
Page 60 / 130
Chapter 3
Configuring the DOCSIS Residential Gateway
42
4042831 Rev A
Configuring IP Address Filters
Use the Setup Advanced Settings - IP Filtering page to configure IP address filters.
These filters block a range of IP addresses from accessing the Internet.
Note:
If you are not familiar with the advanced settings detailed in this section,
contact your service provider before you attempt to change any of the residential
gateway default advanced IP filtering settings.
Click
IP Address Filtering
in the Advanced Settings section of the Setup page to
access the Setup Advanced Settings - IP Filtering page.
Setup Advanced Settings - IP Filtering Page
The following illustration is an example of the Setup Advanced Settings - IP Filtering
page.
Setup Advanced Settings - IP Filtering Page Description
Use this link to specify and enable a range of IP addresses that cannot have access to
the Internet. Click
Apply
to apply and save your new IP address filter settings.

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