Overriding DHCP Properties

DHCP properties configured at the Address Space level apply to the DHCP configuration falling underneath this IP Space. You can choose to keep the inherited properties or override them when you configure the properties for an object. DHCP range, fixed address, or NIOS-X Server address. For example, you can override the values of DHCP properties inherited from a member and enter unique values for a network that is configured for DHCP. When Override is enabled, inheritance can be configured line by line, instead of at the block level.

Note

The inheritance configuration is set to Inherit by default while configuring via the Infoblox Portal or API. You must explicitly choose Override from the Infoblox Portal or API to choose a custom value.

Overriding an Inherited Value from the Infoblox Portal

To override an inherited value, complete the following:

1. Toggle Override next to a property to override the inherited configuration.

2. Enter a new value to override the inherited value.

Overriding an Inherited Value from the API

To override an inherited value from the API, specify the following:

"inheritance_sources": {

                           "dhcp_config": {

                               "dhcp_config_item_x": {

                                   "action": "override"

                               }

                           }

                        }

Granular Control of DHCP Inheritance

After configuring the DHCP options in an object, you can configure the inheritance for each item individually.

To configure inheritance granularly, complete the following:

From the Infoblox Portal, click Manage > IPAM/DHCP > Object_name. This can be an IP Space, Address Space, Address Ranges, or Subnet.
Click > Edit or select the respective record and click the Edit button to modify the object.
Navigate to the DHCP Options pane.
You can Inherit, Override or Block each entry independently by configuring the following options:
- Block all inherited options: Clear the check box to configure inheritance granularly. Select the check box to block the values inherited from the Global DHCP Configuration.
  - Inherit: Inherits the value from the Global DHCP Configuration.
  - Override: Choose to override the inherited value and specify a custom value.
  - Block: Choose this option to block the DHCP option.
Modify the details and click Save & Close to save the record or click Cancel to cancel.

DHCP properties configured at the Address Space level apply to the DHCP configuration falling underneath this IP Space. You can choose to keep the inherited properties or override them when you configure the properties for an object. DHCP range, fixed address, or NIOS-X Server address. For example, you can override the values of DHCP properties inherited from a member and enter unique values for a network that is configured for DHCP. When Override is enabled, inheritance can be configured line by line, instead of at the block level.