15.2 DHCP Plug-in and the Novell ZENworks Network Access Control User Interface

In order to use the DHCP plug-in, you need to select DHCP as the quarantine (enforcement) method, select the DHCP servers using the DHCP plug-in check box, and add your DHCP servers.

The following sections contain more information:

15.2.1 Installing the Plug-in

To install the DHCP plug-in:

Home window>>System configuration>>Quarantining

  1. Select the DHCP radio button in the Quarantine area.

  2. Select the DHCP servers using the DHCP plug-in radio button.

    Figure 15-2 System Configuration, Quarantining, DHCP

  3. Click download the DHCP plug-in. A Windows save window appears.

  4. Browse to a location on the DHCP server you will remember and save the file.

  5. On the DHCP server, navigate to the location of the saved file and double-click it.

  6. Double-click the *.exe installer file. The InstallShield Wizard starts.

    Figure 15-3 DHCP Plug-in InstallShield Wizard window

  7. Click Next. The Customer Information window appears.

    Figure 15-4 DHCP Plug-in Customer Information window

  8. Enter your User Name and Company Name.

  9. Click Next. The Ready to Install the Program window appears.

    Figure 15-5 DHCP Plug-in Ready to Install the Program window

  10. Click Install. The progress is displayed on a Status window. When installation is complete, the InstallShield Wizard Complete window appears.

    Figure 15-6 DHCP Plug-in Installation Wizard Complete window

  11. Click Finish.

15.2.2 Enabling the Plug-in and Adding Servers

To enable the DHCP plug-in and add the DHCP servers:

Home window>>System configuration>>Quarantining

  1. Select the DHCP radio button in the Quarantine area.

  2. Select the DHCP servers using the DHCP plug-in radio button (Figure 15-2).

    NOTE:Changes made while one or more DHCP servers cannot be communicated with will be sent to those DHCP servers as soon as communication is re-established.

  3. Select Add a DHCP plug-in configuration. The Add DHCP plug-in configuration window appears as shown in the following figure:

    Figure 15-7 Add DHCP Plug-in Configuration

  4. Enter the IP address or host name of the DHCP server where the plug-in is to be installed in the DHCP server hostname or IP address text box.

  5. Enter the port number on the DHCP server that listens for plug-in requests in the Plug-in listening port text field.

  6. Enter a brief description of this DHCP server's purpose in the Server description text field.

  7. Select a Plug-in logging level, where:

    • error — Log error-level messages only (least amount of detail)

    • warning — Log warning-level and above messages only

    • info — Log debug-level and above messages only

    • debug — Log everything (most amount of detail)

    IMPORTANT:Setting the log level to debug may adversely affect performance.

  8. Click ok. The added DHCP server appears as shown in the following figure:

    Figure 15-8 DHCP Plug-in Server Added Example

  9. Continue to add DHCP servers until you have added all of them. The possible DHCP server plug-in status states are shown in the following figure:

    Figure 15-9 DHCP Plug-in Legend

    NOTE:Novell ZENworks Network Access Control automatically attempts to connect to the DHCP server. The possible DHCP server status states are shown in Figure 15-9.

  10. Click ok to save the changes and return to the Home window.

15.2.3 Viewing DHCP Server Plug-in Status

DHCP server plug-in status is displayed in the following locations:

  • System configuration>>Quarantining>>DHCP window

  • System monitor>>select a cluster>>Quarantining window

  • Home window>>System configuration>>Quarantining>>DHCP Quarantine method radio button>>DHCP servers using the DHCP plug-in radio button>>Click edit next to a DHCP server configuration

15.2.4 Editing DHCP Server Plug-in Configurations

To edit DHCP Server Plug-in Configurations:

Home window>>System configuration>>Quarantining>>DHCP Quarantine method radio button>>DHCP servers using the DHCP plug-in radio button

  1. Click edit next to the DHCP server you wish to edit. The DHCP Plug-in configuration window appears:

    Figure 15-10 DHCP Plug-in Configuration

  2. Make any necessary modifications.

  3. Click ok to return to the System Configuration>>Quarantining window.

  4. Click ok to save the changes and return to the Home window.

15.2.5 Deleting a DHCP Server Plug-in Configuration

To delete a DHCP Server Plug-in Configuration:

Home window>>System configuration>>Quarantining>>DHCP Quarantine method radio button>>DHCP servers using the DHCP plug-in radio button

  1. Click remove next to the DHCP server plug-in configuration you wish to delete.

  2. Click yes at the Remove DHCP plug-in configuration prompt.

  3. Click ok to save the changes and return to the Home window.

15.2.6 Disabling a DHCP Server Plug-in Configuration

Disable a DHCP server plug-in configuration when you do not wish to use it, but wish to save the configuration and certificates.

To disable a DHCP Server Plug-in Configuration:

Home window>>System configuration>>Quarantining>>DHCP Quarantine method radio button>>DHCP servers using the DHCP plug-in radio button

  1. Click disable next to the DHCP server plug-in configuration you wish to disable.

  2. Click yes at the Disable DHCP plug-in configuration prompt.

  3. Click ok to save the changes and return to the Home window.

15.2.7 Enabling a DHCP Server Plug-in Configuration

Enable a DHCP server plug-in configuration that was previously created and disabled.

To enable a DHCP Server Plug-in Configuration:

Home window>>System configuration>>Quarantining>>DHCP Quarantine method radio button>>DHCP servers using the DHCP plug-in radio button

  1. Click enable next to the DHCP server plug-in configuration you wish to enable.

  2. Click yes at the Enable DHCP plug-in configuration prompt.

  3. Click ok to save the changes and return to the Home window.