Cisco Dpq3925x User Manual

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 How Do I Maintain the Battery? 
 
Location of Battery 
As shown in the following illustrations, the battery compartment is located on the 
right side panel for both DPQ3925 housing types. 
 
Housing Type 1  
Housing Type 2  
Before Removing and Replacing the Battery 
Before removing and replacing the battery, refer to the following important 
information.  
 You can remove and replace the battery without disconnecting the AC power 
source. 
 It may take as long as 24 hours for each battery to charge fully. 
 Dispose of the battery in accordance with local regulations and instructions from 
your service provider. 
Removing and Replacing the Battery, Housing Type 1 
1 Open the battery door by operating the battery door lock on the side of the unit. 
2 Grasp the plastic pull-tab on the battery and gently slide the battery forward to 
remove it from the battery compartment. 
3 Insert a new battery into the battery compartment. 
4 Close the battery compartment door. 
Removing and Replacing the Battery, Housing Type 2 
1 Open the battery door by pressing on the battery door where indicated on the 
side of the unit. 
2 Slide the gray battery lock release inside the battery compartment upward to 
disengage the battery lock. 
3 Grasp the plastic pull-tab on the battery and gently slide the battery forward to 
remove it from the battery compartment. 
4 Insert a new battery into the battery compartment. 
5 Close the battery compartment door. The battery lock will automatically engage.   
						

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How Do I Configure My DOCSIS Residential Gateway? 
 
How Do I Configure My DOCSIS Residential Gateway? 
To configure your residential gateway, you must first access the WebWizard 
configuration pages. This section provides detailed instructions and procedures for 
accessing the WebWizard pages and for configuring your residential gateway to 
operate correctly. This section also presents examples and descriptions of each 
WebWizard configuration page. Use the WebWizard pages to customize your 
residential gateway to your needs rather than using the default settings. The 
WebWizard pages in this section are organized in the order shown on the Setup 
page. 
Important: The WebWizard pages and the examples shown in this section are for 
illustration purposes only. Your pages may differ from the pages shown in this 
guide. The pages shown in this guide also represent the default values for the 
device. 
Note: If you are not familiar with the network configuration procedures detailed in 
this section, contact your service provider before you attempt to change any of the 
residential gateway default settings.  
Logging in to the Gateway for the First Time 
The default configuration of the gateway uses IP address 192.168.0.1. If you have 
connected the gateway correctly and you have properly configured your computer, 
use the following steps to log in to the gateway as an administrator. 
1 On your PC, open the web browser that you prefer to use.  
						

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2 In the address field, enter the following IP address:  192.168.0.1. A Status DOCSIS 
WAN login page similar to the following page opens.  
 
3 On the Status DOCSIS WAN page, leave the User Name and Password field 
blank and click Log In. The gateway opens with an Administration Management 
page in the forefront. You can use the Administration Management page to 
change your User Name and Password. 
At this point you are logged into the gateway. You can select any of the setup 
and management web pages.  However, you were directed to the Administration 
Management to serve as a reminder to set up a new password. 
Important: We highly recommend that you set up a new password to safeguard 
against the possibility of Internet attacks that look for devices operating with 
well-known or factory default user names and/or passwords.  
						

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How Do I Configure My DOCSIS Residential Gateway? 
 
 
 
4 On the Administration Management page, create a User Name and Password 
and then click Save Settings. Once you save the settings for your User Name and 
Password on the Administration Management page, the Setup Quick Setup page 
opens. 
Important: You have the option to leave the password field blank (factory 
default). However, if you do not change your User Name and Password, you 
will be directed to the Administrative Management page each time you access 
the gateway. This serves as a reminder to set up your personalized password. 
Once you have personalized your Password, subsequent logins will take you 
directly to the Setup Quick Setup page. 
5 After you make your selections, click Save Settings to apply your changes or 
Cancel Changes to cancel.  
Setup > Quick Setup 
The Setup Quick Setup page is the first page to open after you have logged on to 
your gateway. You can use the settings on this page to change your password and to 
configure the WLAN. 
Important: The settings on this page are unique to your device. If you choose, you 
do not need to make any changes to the settings on this page. These default settings 
are all that you need to operate a secure wireless network.  
						

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Configuring Quick Settings 
Use the descriptions and instructions in the following table to configure the network 
settings for the device. After you make your selections, click Save Settings to apply 
your changes or click Cancel Changes to cancel. 
Section Field Description 
Change Password User Name  
Displays the user name for the operator currently logged in 
Change Password to  
Allows you to change your password 
Re-Enter New Password  
Allows you to re-enter the new password. You must enter the same 
password as the one entered in the field Change Password to  
						

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Section Field Description 
WLAN Wireless Network  
Allows you to enable or disable the wireless network. Select the 
desired option: 
 Enable 
 Disable  
Wireless Network Name (SSID)  
Allows you to enter a name for your wireless network or to use the 
default value. The value you enter he will be viewable on PCs and 
other wireless client devices such as the wireless network name. 
Note: The factory default Service Set Identifier (SSID) is normally 
equal to the last 6 characters of the CM MAC Address. The CM MAC 
Address can be found on the rating label attached to your wireless 
gateway. 
Wireless Security Mode  
Allows you to select a wireless security mode to help protect your 
network. If you select Disable then your wireless network is not 
secure and any wireless device within range may connect to it. See 
Wireless Security (on page 45) for detailed descriptions of wireless 
security modes. 
Note: The factory default Wireless Security Mode is WPA or  
WPA2-Personal. 
Encryption  
Allows you to select a level of encryption based on the wireless 
security mode you choose. See Wireless Security (on page 45) for 
detailed descriptions of encryption. 
Pre-Shared Key  
The pre-shared key for the device. The key can be from 8 to 63 
characters. The factory default Pre-Shared Key is equal to the 9-digit 
serial number of your gateway. The serial number can be found on 
the rating label attached to your wireless gateway. 
Note: Your service provider may provide you with a wireless 
configuration card that contains SSID and wireless security 
configuration information for your home network that may differ 
from what is described above.   
						

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Setup > Lan Setup 
The Setup Lan Setup page allows you to configure the settings for the Local Area 
Network (LAN) in your home. These settings include the range of IP addresses that 
define the LAN itself as well as how the addresses are assigned (automatically by 
DHCP or manually) as new devices are added to the network. 
Important: Unless you are knowledgeable about administering IP addresses, we 
recommend that you do not change these settings. If you change these values 
incorrectly, you can lose Internet access. 
Select the Lan Setup tab to open the Setup Lan Setup page. 
 
Configuring Your Network Settings 
Use the descriptions and instructions in the following table to configure the network 
settings for your residential gateway. After you make your selections, click Save 
Settings to apply your changes or click Cancel Changes to cancel. 
Section Field Description 
Network Setup 
(LAN) 
Gateway IP 
Local IP Address  
The base IP address of the private home LAN. The factory default 
LAN IP Address is 192.168.0.1. 
Subnet Mask  
The subnet mask for your LAN  
						

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Section Field Description 
Network Address 
Server Settings 
(DHCP) 
DHCP Server 
Allows you to enable or disable the DHCP server in the 
residential gateway. The DHCP server is used to automatically 
allocate IP addresses to devices as they are attached to your home 
network. 
 Connected Devices Summary page 
Click Connected Devices Summary in the Lan Setup page. The 
Connected Devices Summary page opens. This page is a pop-up 
window that displays the MAC Address and IP Address of the 
devices that are connected to the residential gateway. 
 
 Pre-assigned DHCP IP Addresses page 
Click Pre-assigned DHCP IP Addresses in the Lan Setup page. 
The Pre-assigned DHCP IP Addresses page opens. This page 
allows you to assign a specific IP address to a PC or other device 
when they request an IP address using DHCP. Only addresses 
within the range of the gateways DHCP address pool can be 
reserved with this feature. 
 
Notes:  
– The Add Static IP button adds the Static IP address to the 
list of pre-assigned IP addresses. 
– The Remove Static IP button removes the Static IP 
address from the list of pre-assigned IP addresses 
Starting IP Address 
Displays the starting address used by the built-in DHCP server to 
distribute Private LAN IP addresses. Because the device default 
IP address of the gateway is 192.168.0.1, the starting IP address 
must be 192.168.0.2 or greater, but smaller than 192.168.0.253. The 
default Starting IP Address is 192.168.0.10.  
						

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Section Field Description 
 Maximum Number of DHCP Users  
Enter the maximum number of users to which the DHCP server 
can assign IP addresses for use in the LAN. This number cannot 
be greater than 254 minus the starting IP address described 
above. 
Client Lease Time  
The Client Lease Time is the amount of time an IP address is 
valid. IP address leases are renewed automatically by your PC 
and other devices that use DHCP to obtain IP addresses. If a lease 
is allowed to expire, the IP address will be returned to the pool of 
available IP addresses that can be assigned by the DHCP server 
as new devices are added to your network. The default is 60 
minutes when the gateway is online.  
LAN Static DNS (Domain Name Server) 1-3 
DNS is used by a PC or other client devices to discover the public 
IP address associated with a URL or the name-based address of a 
website. You can manually specify which DNS servers are to be 
used by devices in your network by entered the IP addresses of 
those servers in  these fields. Otherwise, the gateway will forward 
the DNCS server information from your service provider 
automatically. The default is to leave these fields blank.  
Time Settings Time Zone 
Select the time zone for your location. If your location follows 
daylight saving time, select Automatically adjust clock for 
daylight saving time.  
Setup > DDNS 
Dynamic Domain Name Service (DDNS) provides the residential gateway (that may 
have a changing IP address) with a host name or URL resolvable by network 
applications through standard DNS queries. DDNS 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. 
Select the DDNS tab to open the Setup DDNS page.  
						

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Section Field Description 
DDNS 
Service 
Disabling DDNS (Factory Default Settings) 
To disable DDNS, select Disabled from the drop-down list and click Save 
Settings. 
 
Enabling DDNS 
Note: In order to use the DDNS feature, you must first set up an account and 
establish a URL with www.DynDNS.org. The DDNS feature will not work 
without a valid account. 
To set up a DDNS account, open your browser and enter www.DynDNS.org 
in the address bar. Follow the instructions on the website to set up an account. 
To enable DDNS, follow these steps. 
1 On the DDNS page, select www.DynDNS.org as your DDNS server. 
 
2 Configure the following fields: 
 User Name 
 Password 
 Host Name 
3 Click Save Settings. The device will now advise the DDNS service of your 
current WAN (Internet) IP address whenever this address changes. 
Important: The Status area of the window will display the status of the 
DDNS service connection.