Configuring DHCP client option sets

If a DHCP client requires a custom set of options but not a fixed address, you can create an entry without defining an IP address or host name.

Machines such as networked printers, print servers, DNS servers, and file servers require fixed IP addresses so that clients can locate them. Some of these machines may also be capable of obtaining configuration parameters as DHCP clients.

Adding a client option set

To define a client configuration using the DHCP Server Manager:

1. Select View Clients.

2. Select Entry Add.

3. Enter the following information about the client:

   Client identifier type

   Select Hardware if the client identifies itself to the server using the MAC address of its network adapter. Select Opaque if the client identifies itself using a string.

   Client identifier

   If the client identifier type is Opaque, enter the string that a client uses to identify itself.

   Hardware type

   If the client identifier type is Hardware, select the frame type that it uses: Ethernet for Ethernet II (traditional Ethernet) framing or IEEE 802 for IEEE 802.n framing.

   IEEE 802.3 frames can use the same network topology as Ethernet II frames but their structure is different. Most TCP/IP networks are configured to use Ethernet II framing.

   If your network has a Token Ring or Token Bus topology, select IEEE 802.

   Hardware address

   If the client identifier type is Hardware, enter the MAC address of its network adapter. Enter the address in hexadecimal and do not use colon notation. For example, you would enter ``0000c034f152'' rather than ``00:00:c0:34:f1:52''.

   Description

   An optional short description of the client.

4. To define a static IP address for the client, click on Client. Enter the client's IP address in dot notation and click on OK. The IP address must not belong to an address pool that has been configured for dynamic address allocation.

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   NOTE: Do not define an IP address if you only want to assign specific DHCP options to the client. DHCP will dynamically obtain an address from the AAS server and assign it to the client.

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5. To configure DHCP options that are specific to the client you are defining, click on Generic. See ``Configuring DHCP options'' for more information.

6. Click on OK.

Modifying a client option set

To modify a client configuration using the DHCP Server Manager:

1. Select View Clients.

2. Highlight the client you want to change and select Entry Modify.

3. Make the necessary changes and click on OK.

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   NOTE: You cannot change the Hardware address or the Client identifier type.

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Deleting a client option set

To delete a client configuration using the DHCP Server Manager:

1. Select View Clients.

2. Highlight the client you want to delete.

3. Select Entry Delete.

4. When asked to confirm that you want to delete the client, click on OK.