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Using Modem Registrar

Using Modem Registrar

The Modem Registrar user interface provides a flexible method for customizing DOCSIS configuration files. This chapter discusses the user interface, and explains how to start a session with Modem Registrar and how to manage administrators.

Modem Registrar User Interface

Modem Registrar provides a Web-based user interface that consists of a collection of pages, designed to enable you to perform a specific management or configuration task. Using these pages, you can do the following:

Online Help pages provide information about the fields and buttons on a user interface page. To open a Help page, click Help in the page's Modem Registrar Toolbar, shown in Figure 3-1.

Table 3-1 lists the menu pages available in the Modem Registrar user interface. For more information about the user interface pages, see "Modem Registrar User Interface Pages."


Table 3-1:
User Interface Page Description

Login

Starts a session with Modem Registrar.

Main Menu

Selects the functional area that you want to manage.

Manage Services

Selects the services that you want to manage.

Configure Option Sets

Selects the option sets that you want to manage.

Configure TFTP Server

Selects the TFTP functional area you want to control or manage.

Manage Administrators

Lists and deletes the administrators currently defined, and accesses the pages used to add and modify administrators.

Menu Pages

Modem Registrar Toolbar

The Modem Registrar Toolbar (see Figure 3-1) appears on each of the user interface pages in the upper right-hand corner. The toolbar consists of the following buttons, although not all buttons are available for each page as indicated in the descriptions below:


Figure 3-1:
Modem Registrar Toolbar


Navigation Bar

The Modem Registrar Navigation Bar (see Figure 3-2) enables you to quickly navigate from one user interface page to another. The Navigation Bar appears just below the page title on each of the interface pages, except the Login and Main Menu pages.


Figure 3-2: Navigation Bar


The Navigation Bar consists of one or two rows of buttons, depending on the page. The top row of buttons provides the same selections available on the Main Menu page and corresponds to the four functional areas you may manage or configure. The buttons in this row are:

The bottom row of buttons provides access to the pages available from the selections in the top row. Selections displayed in red indicate the choices you are currently accessing. Selections displayed in green indicate the choices you can access.

For example, Figure 3-2 displays the option sets Navigation Bar. The buttons in the bottom row provide access to the pages available from the Option Sets button.

Additional User Interfaces for TFTP Server Management

In addition to managing the TFTP server using the Web user interface (see "Managing the Cisco TFTP Server"), you can also use the command line interface (CLI) to manage the TFTP server. For more information, see the Cisco Network Registrar CLI Reference Guide.

Reloading the TFTP Server's Memory

The TFTP server assembles DOCSIS options for a cable modem's DOCSIS configuration file based on the configuration information stored in the server's memory. When you make changes to the configuration information, the changes are written to the directory database, but they are not stored in the TFTP server's memory. You must reload the server's memory to update it with the most current LDAP configuration information.

To reload the TFTP server's memory, do the following:

Step 1 On the Main Menu page, click Configure TFTP Server.

Step 2 On the Configure TFTP Server page, click Control.

Step 3 On the Control TFTP Server page, click Reload.

The TFTP server stops and then immediately restarts with the changed LDAP configuration installed in the server's memory.

You are not notified if the server's memory was successfully updated. However, a message does appear if the reload operation failed.


Note Be sure to exercise caution when choosing to reload the TFTP server as this can have a disruptive effect on subscribers currently using the system. You might choose to make reloading the TFTP server part of a regularly scheduled activity that occurs in off-peak hours.

Suggestions for Using Modem Registrar

The Modem Registrar user interface provides a flexible method for doing the following:

To simplify the configuration process, Cisco recommends that you define options for the general to the more specific option set scopings. First define options for the default option set (the most general option set) and then define option sets for more specific option sets, such as the CMTS and vendor option sets.

At a minimum, you must assign options to the default option set and create option sets for the CMTS and subnet option scopings.

You can choose to define the following optional option sets:

Using Modem Registrar for the First Time

When using Modem Registrar for the first time, Cisco recommends that you follow these steps:

Step 1 Disable all existing TFTP services on the host on which you installed Cisco Network Registrar (CNR) version 3.0 (1)T or higher Technology (T) version.

Step 2 Create administrators (see "Creating and Managing Administrators" section).

Step 3 Configure the Cisco TFTP server using the Modem Registrar user interface (see "Managing the Cisco TFTP Server").

Step 4 Define services (see "Managing Services").

Step 5 Assign options to the default option set (see "Configuring the Default Option Set").

Step 6 Define the optional CMTS group option set, if desired, and the required CMTS and subnet option sets (see the online CMTS group option set Help pages, "Configuring CMTS Option Sets" and "Configuring Subnet Option Sets").

Step 7 Define the optional vendor and cable modem option sets, if desired (see "Configuring Vendor Option Sets" and the online cable modem option set Help pages).

Typically, the optional option sets are sparsely populated since they pertain to very specific cases within the installation.

As you define option sets, you must determine whether to actually assign option values to those sets. You may choose not to define options for some option sets. For example, you can create subnet option sets that model your physical installation, but that do not have any options assigned to them.

For more information on option set scopings, see the "Option Set Scopings" section.

Disabling Existing TFTP Services

The Cisco TFTP server provides standard TFTP services and dynamically creates customized configuration files for each DOCSIS cable modem. This server replaces all existing TFTP services running on your Solaris or Windows NT system. To prevent overlapping of services, you must disable all existing TFTP services on the host on which the Cisco Network Registrar's TFTP server is installed.

Logging In to Modem Registrar

You can use the Login page (see Figure 3-3) to establish a session with Modem Registrar. This page provides fields for you to enter your username and password. If you are logging in to Modem Registrar for the first time, you can use the default username and password shown below. Subsequently, however, Cisco recommends that administrators log in using the username and password you create.

Username    admin
Password    changeme
Tips After you log in to Modem Registrar the first time, create administrators that you want to manage and define configuration parameters. For more information, see the "Creating and Managing Administrators" section.

Figure 3-3:
Login Page


To log in to Modem Registrar, do the following:

Step 1 Enter the following URL in your browser to open the CSRC Welcome page:

http://<hostname>[:<port-number>]/csrc/admin.html  
 

where:

hostname is the name of your Web browser.

port-number is the number of the port on which the Web browser is communicating. The default is port 80. You only need to specify the port number if a port other than 80 is being used.

For example, if your Web browser is called webhost and is communicating on port 80, you enter the following URL:

http://webhost/csrc/admin.html  
 

If port 1002 is being used instead of port 80, you enter the following URL:

http://webhost:1002/csrc/admin.html  
 

Step 2 On the CSRC Welcome page, click the following hypertext link to open the Modem Registrar Login (see Figure 3-3) page:

Log in to Modem Registrar
 

Step 3 On the Login page, enter your administrator username and password in the Username and Password fields.

Step 4 Click Login. The Main Menu page appears.

Logging Out of Modem Registrar

You can use the Logout button in the Modem Registrar Toolbar (see Figure 3-1) to end a session with Modem Registrar. The Toolbar appears in the upper right-hand corner of each user interface page; however, the Logout button is not available on the Login page.

To log out of Modem Registrar, do the following:

Step 1 Save any configuration changes you made.

Step 2 Click Logout in the Modem Registrar Toolbar.

Step 3 On the Logout from Modem Registrar page (see Figure 3-4), click Logout to exit Modem Registrar or click Cancel to return to the previous page.


Note Be sure to click OK to save your configuration changes before you click Logout. Any unsaved changes are lost when you log out.

Figure 3-4: Logout from Modem Registrar Page


Selecting the Item You Want to Manage

You can use the Main Menu page (see Figure 3-5) to access the user interface pages used to manage and configure the following:


Figure 3-5: Main Menu Page


Creating and Managing Administrators

You can use the Manage Administrators page (see Figure 3-6) to do the following:


Figure 3-6: Manage Administrators Page


Listing Existing Administrators

You can use the Manage Administrators page (see Figure 3-6) to list the administrators currently defined.

To list existing administrators, do the following:

Step 1 Log in to Modem Registrar.

Step 2 On the Main Menu page, click Administrators.

Step 3 On the Manage Administrators page, enter * in the Username field and click Search to list all of the existing administrators.

Adding Administrators

You can use the Add Administrators page (see Figure 3-7) to do the following:


Figure 3-7:
Add Administrator Page


To add administrators, do the following:

Step 1 Log in to Modem Registrar.

Step 2 On the Main Menu page, click Administrators.

Step 3 On the Manage Administrators page, click Add Administrator.

Step 4 On the Add Administrator page, enter the new administrator's username in the Administrator Username field.

Step 5 Enter descriptive information in the Description field to further identify the administrator.

Step 6 Enter a password for the new administrator in the Administrator Password field. The password appears as a series of asterisks.

Step 7 Enter the password again in the Confirm Password field. You must enter the password exactly as you entered it the first time. If you do not, an error message appears asking you to re-enter the new password. The password appears as a series of asterisks.

Step 8 Set the desired administrator privileges for the new administrator.

Step 9 Click Add Administrator.

Step 10 On the Confirm Addition of Administrator page (see Figure 3-8), review the new administrator information and do one of the following:


Figure 3-8: Confirm Addition of Administrator Page


Modifying Administrators

You can use the Edit Administrator page (see Figure 3-9) to do the following:


Figure 3-9: Edit Administrator Page


To modify the administrator, do the following:

Step 1 Log in to Modem Registrar.

Step 2 On the Main Menu page, click Administrators.

Step 3 On the Manage Administrators page, list the administrator you want to modify by doing one of the following:

Step 4 In the list of administrators, locate the username of the administrator you want to modify and click Edit for that administrator.

Step 5 On the Edit Administrator page, modify the administrator's information as desired.

For example, if you select the Modem Registrar Administrator checkbox, you can select the Disabled checkbox to temporarily prevent the administrator from accessing the Modem Registrar pages.

Step 6 Click OK to save the changes you indicated.

Step 7 On the Confirm Changes to Administrator page (see Figure 3-10), review the administrator information and do one of the following:


Figure 3-10: Confirm Changes to Administrator Page


Deleting Administrators

You can use the Manage Administrators page (see Figure 3-6) to remove an administrator you no longer want to configure and manage cable modem parameters. Each administrator that you list on the page has a corresponding Delete button that allows you to remove the administrator, if desired.

To delete an administrator, do the following:

Step 1 Log in to Modem Registrar.

Step 2 On the Main Menu page, click Administrators.

Step 3 On the Manage Administrators page, list the administrator you want to modify by doing one of the following:

Step 4 In the list of administrators, locate the username of the administrator you want to remove and click Delete for that administrator.

Step 5 On the Confirm Deletion of Administrator page (see Figure 3-11), check the administrator username and description to verify that you selected the correct administrator and do one of the following:


Figure 3-11: Confirm Deletion of Administrator Page



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Posted: Mon Jan 17 07:56:40 PST 2000
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