Subnet Management

You use the DNS/DHCP Management Utility to create and set up a DHCP Subnet object for each of the subnets to which you will assign addresses.

A Subnet object's specific DHCP options and configuration parameters apply to the entire subnet and override global options.

The Subnet Management role consists of the following tasks:


Creating a Subnet object

  1. Click DHCP Management > Subnet Management to open the Subnet Management window in the main panel.

  2. Select Create Subnet from the drop-down menu and click OK to open the Create Subnet window.

  3. Enter a unique subnet name.

  4. Select the eDirectory context where the new subnet record will be stored.

  5. Enter a subnet address, a subnet mask, and the name of a default DHCP server in the fields provided.

    The default DHCP server field designates the principal DHCP server for a subnet. This server is assigned all address ranges created under the subnet, unless a different server is specified when the range is created. The default server is the only server that responds to BOOTP requests for the subnet.

  6. Click Create.

    A message indicates that the new subnet has been created.

    IP address objects are simultaneously created to exclude routing and broadcast addresses.


Viewing or Modifying a Subnet Object

  1. Click DHCP Management > Subnet Management to open the Subnet Management window in the main panel.

  2. Select View/Modify Subnet from the drop-down menu and click OK to open the View/Modify Subnet window.

  3. Select the Subnet object from the drop-down menu.

  4. Click OK.

    You are led through a set of steps by which you can modify the following parameters:


Deleting a Subnet Object

  1. Click DHCP Management > Subnet Management to open the Subnet Management window in the main panel.

  2. Select Delete Subnet from the drop-down menu and click OK to open the Create Subnet window.