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All examples in this section are based on the inheritance chain Network View -> Network Container -> Network -> Range
-> Host/Fixed Address/Reservation, in which network view is at the top level and host, fixed address and reservation at the bottom of the inheritance chain.

Example 1

When you add an extensible attribute to the top object, the inheritance state is set to No Parent. For example, if you add a new inheritable extensible attribute, Building, to a network view, the inheritance state of this extensible attribute is set to No Parent for the network view.

Example 2

When you add an extensible attribute Site to the parent object Network that has a descendant Range, you can define Site as inheritable and add it to the Network. The descendant, Range, may or may not have the same extensible attribute. Infoblox displays a list of options that lets you either inherit the value or retain or override the existing value of the extensible attribute at the descendant level. Another option is to inherit the value of Site, only if the value for this attribute in Range is same as that in Network. You can also decide if Range should acquire the same value for Site, if it is not defined for Range. This change can be inherited by the descendants of Range.
Depending on your configuration, the inheritance state of the extensible attribute can display Inherited, Overridden or Not Inherited. If the object is at the top of the inheritance chain (Network View), then the inheritance state is not displayed. The inheritance state is set to No Parent only if an object has a parent, but the parent does not have the inherited extensible attribute.

Example 3

Examples in this section show different results when you add a new inheritable extensible attribute to an object located at the top or in the middle of the inheritance chain based on the following:

ObjectTypeExtensible AttributeExtensible Attribute Value Inheritance State
10.0.0.0/8Network Container


10.0.0.0/16NetworkRegionABCNative
10.1.0.0/16Network


 
Example 3.1:  Add an extensible attribute Region with value DEF to 10.0.0.0/8

You select the following options for the existing extensible attribute:

    • For descendants that already have this extensible attribute, the existing extensible attribute will always be set to Inherit.
    • For descendants that do not have this extensible attribute, the descendants will inherit this extensible attribute.

Result:

ObjectTypeExtensible AttributeExtensible Attribute Value Inheritance State
10.0.0.0/8Network ContainerRegionDEFNative
10.0.0.0/16NetworkRegionDEFInherited from 10.0.0.0/8
10.1.0.0/16NetworkRegionDEFInherited from 10.0.0.0/8


Example 3.2:   Add an extensible attribute Region with value DEF to 10.0.0.0/8

You select the following options for the existing extensible attribute:

  • For descendants that already have this extensible attribute, the existing extensible attribute will always be set to Override.
  • For descendants that do not have this extensible attribute, the descendants will not inherit this extensible attribute (extensible attribute is set to Do not Inherit).

Result:

ObjectTypeExtensible AttributeExtensible Attribute Value Inheritance State
10.0.0.0/8Network ContainerRegionDEFNative
10.0.0.0/16NetworkRegionABCOverridden
10.1.0.0/16NetworkRegion

   
Example 3.3: Add an extensible attribute Region with value DEF to 10.0.0.0/8 8

You select the following options for the existing extensible attributes:

  • For descendants that already have this extensible attribute, the existing extensible attribute will always be set to Inherit.
  • For descendants that do not have this extensible attribute, the descendants will not inherit this extensible attribute (extensible attribute is set to Do not Inherit).

Result:

ObjectTypeExtensible AttributeExtensible Attribute Value Inheritance State

10.0.0.0/8

Network Container


RegionDEFNative

10.0.0.0/16

NetworkRegionDEFInherited,

Source 10.0.0.0/8

10.1.0.0/16NetworkRegion

Example 4

Examples in this section show different results when you remove an existing inheritable extensible attribute from an object located at the top or in the middle of the inheritance chain based on the following:

ObjectTypeExtensible AttributeExtensible Attribute Value Inheritance State

10.0.0.0/8

Network ContainerRegionDEFNative

10.0.0.0/16

NetworkRegionDEFInherited from

10.0.0.0/8

10.1.0.0/16

Network

RegionABCOverridden


Example 4.1:  Remove extensible attribute Region with value DEF from 10.0.0.0/8

You select the following option for the existing extensible attribute:

  • Remove extensible attributes with inheritance state set to Inherited. Extensible attributes with the state set to Overridden are not removed.

Result:

ObjectTypeExtensible AttributeExtensible Attribute Value Inheritance State

10.0.0.0/8

Network ContainerRegion

10.0.0.0/16

NetworkRegion

10.1.0.0/16

Network

RegionABCOverridden


Example 4.2: Remove extensible attribute Region with value DEF from 10.0.0.0/8 You select the following option for the existing extensible attribute:

  • Preserve all descendant extensible attributes, whether the state is set to Inherited or Overridden. Result:
ObjectTypeExtensible AttributeExtensible Attribute Value Inheritance State

10.0.0.0/8

Network Container


10.0.0.0/16

NetworkRegionDEFNative
10.1.0.0/16

Network

RegionABCNative

Example 5

Examples in this section show different results when you remove parent object based on the following:

ObjectTypeExtensible AttributeExtensible Attribute Value Inheritance State

10.0.0.0/8

Network ContainerRegionDEFNative

10.0.0.0/16

Network ContainerRegionDEFInherited from 10.0.0.0/8
10.1.0.0/24

Network

RegionDEFInherited from 10.0.0.0/8
10.1.0.0/24NetworkRegionABCOverriden
10.10.0.0/16Network ContainerRegionGHIOverriden
10.10.0.0/24NetworkRegionGHIInherited from 10.10.0.0/16
10.10.0.0/24NetworkRegionJKLOverridden

Example 5.1: Removing object 10.0.0.0/8 from the parent level You select the following option for the existing extensible attribute:

  • Remove extensible attributes with the inheritance state set to Inherited. Extensible attributes with the state set to Overridden are not removed.

Result:

Object

Type

Extensible Attribute

Extensible Attribute Value

Inheritance State

10.0.0.0/16

Network Container




10.0.0.0/24

Network




10.0.1.0/24

Network

Region

ABC

Overridden

10.10.0.0/16

Network Container

Region

GHI

Overridden

10.10.0.0/24

Network

Region

GHI

Inherited from 10.10.0.0/16

10.10.1.0/24

Network

Region

JKL

Overridden


Example 5.2: Removing object 10.0.0.0/8 from the parent level
You select the following option for the existing extensible attribute on descendants:

  • Preserve all extensible attributes on the descendant.

Result:

Object

Type

Extensible Attribute

Extensible Attribute Value

Inheritance State

10.0.0.0/16

Network Container

Region

DEF

Native

10.0.0.0/24

Network

Region

DEF

Inherited from 10.0.0.0/16

10.0.1.0/24

Network

Region

ABC

Overridden

10.10.0.0/16

Network Container

Region

GHI

Native

10.10.0.0/24

Network

Region

GHI

Inherited from 10.10.0.0/16

10.10.1.0/24

Network

Region

JKL

Overridden


Example 5.3: Remove object 10.10.0.0/16 from the parent level
You select the following option for the existing extensible attribute on descendants:

  • Remove extensible attributes with the inheritance state set to Inherited. Extensible attributes with the state set to Overridden are retained.

Result:

Object

Type

Extensible Attribute

Extensible Attribute Value

Inheritance State

10.0.0.0/8

Network Container

Region

DEF

Native

10.0.0.0/16

Network Container

Region

DEF

Inherited from 10.0.0.0/8

10.0.0.0/24

Network

Region

DEF

Inherited from 10.0.0.0/8

10.0.1.0/24

Network

Region

ABC

Overridden

10.10.0.0/24

Network

Region



10.10.1.0/24

Network

Region

JKL

Overridden


Example 6
Examples in this section show different results after you add an object in the middle of the inheritance chain based on the following:

Object

Type

Extensible Attribute

Extensible Attribute Value

Inheritance State

10.0.0.0/8

Network Container

Owner

Admin

Native

10.0.0.0/16

Network Container

Owner

Admin

Inherited from 10.0.0.0/8

10.0.0.0/24

Network

Owner

Admin

Inherited from 10.0.0.0/8

10.0.1.0/24

Network

Owner

Joe

Overridden

10.10.0.0/24

Network

Owner

Admin

Inherited from 10.0.0.0/8

10.10.1.0/24

Network

Owner

Annie

Overridden


Example 6.1: Adding object 10.10.0.0/16 without extensible attributes You select the following option for the existing extensible attribute:

  • Retain values if the extensible attribute already exists, and inherit the attribute from the parent object if it does not exist.

Result:

Object

Type

Extensible Attribute

Extensible Attribute Value

Inheritance State

10.0.0.0/8

Network Container

Owner

Admin

Native

10.0.0.0/16

Network Container

Owner

Admin

Inherited from 10.0.0.0/8

10.0.0.0/24

Network

Owner

Admin

Inherited from 10.0.0.0/8

10.0.1.0/24

Network

Owner

Joe

Overridden

10.10.0.0/16

Network Container

Owner

Admin

Inherited from 10.0.0.0/8

10.10.0.0/24

Network

Owner

Admin

Inherited from 10.0.0.0/8

10.10.1.0/24

Network

Owner

Annie

Overridden


Example 7
Examples in this section show different results after you modify inheritable extensible attributes with multiple values based on the following:

ObjectTypeExtensible AttributeExtensible Attribute Value Inheritance State

10.0.0.0/8

Network Container


10.0.0.0/16

Network ContainerRegionMNONative


RegionPQRNative


Example 7.1: Adding extensible attribute Region with value GHI to 10.0.0.0/8 You select the following option for the existing extensible attributes:

  • The descendants that already have this extensible attribute will inherit the value from the parent object.

Result: Multiple values will be replaced with the single inherited value.

Object

Type

Extensible Attribute

Extensible Attribute Value

Inheritance State

10.0.0.0/8

Network Container

Region

GHI

Native

10.0.0.0/16

Network Container

Region

GHI

Inherited from 10.0.0.0/8


Example 7.2: Adding extensible attribute Region with value GHI to 10.0.0.0/8 You select the following option for the existing extensible attributes:

  • The descendants that already have this extensible attribute will override the value.
ObjectTypeExtensible AttributeExtensible Attribute Value Inheritance State

10.0.0.0/8

Network ContainerRegionGHINative

10.0.0.0/16

NetworkRegionDEFOverridden


RegionABCOverridden

Example 8

Examples in this section show different results after you modify existing inheritable extensible attribute of an object, but you do not have required permission to modify some descendants. For information about admin permissions, see About Administrative Permissions.

Object

Type

Extensible Attribute

Extensible Attribute Value

Inheritance State

Permission

10.0.0.0/8

Network Container

Owner

Sam

Native

Write

10.0.0.0/16

Network Container

Owner

Sam

Inherited from 10.0.0.0/8

Read

10.0.0.0/24

Network

Owner

Sam

Inherited from 10.0.0.0/8

Read

10.0.1.0/24

Network

Owner

Bob

Overridden

Write

10.10.0.0/16

Network Container

Owner

John

Inherited from 10.0.0.0/16

Read

10.10.1.0/24

Network

Owner

Max

Overridden

Read
10.20.0.0/16Network ContainerOwnerSamInherited from 10.0.0.0/8Write
10.20.0.0/24 NetworkOwner

Read
10.20.1.0/24NetworkOwner

Read

Example 8.1: Removing object 10.0.0.0/8
You select the following option for the existing inheritable extensible attribute:

  • Retain extensible attribute values on descendants that are inherited from this parent object.

Result:

Object

Type

Extensible Attribute

Extensible Attribute Value

Inheritance State

Permission

10.0.0.0/16

Network Container

Owner

Sam

Native

Read

10.0.0.0/24

Network

Owner

Sam

Native

Read

10.0.1.0/24

Network

Owner

Bob

Overridden

Write

10.10.0.0/16

Network Container

Owner

John

Overridden

Read

10.10.0.0/24

Network

Owner

John

Inherited from 10.10.0.0/16

Read

10.10.1.0/24

Network

Owner

Max

Overridden

Read

10.20.0.0/16

Network Container

Owner

Sam

Native

Write

10.20.0.0/24

Network




Read

10.20.1.0/24

Network




Read


Example 8.2: Removing object 10.0.0.0/8
You select the following option for the existing inheritable extensible attribute:

  • Remove extensible attribute values from descendants that are inherited from this parent object.

The appliance displays an error message when you remove an extensible attribute that is associated with a descendant for which you do not have required permission.
Result:

Object

Type

Extensible Attribute

Extensible Attribute Value

Inheritance State

Permission


10.0.0.0/16

Network Container






10.0.0.0/24

Network






10.0.1.0/24

Network

Owner

Bob

Overridden

Write


10.10.0.0/16

Network Container

Owner

John

Overridden

Read


10.10.0.0/24NetworkOwnerJohnInherited from 10.10.0.0/16Read
10.20.0.0/16NetworkOwnerMaxOverriddenRead
10.20.0.0/24Network Container


Write
10.20.1.0/24Network


Read

Example 9

Examples in this section show different results after you join multiple networks, based on the following:

ObjectTypeExtensible AttributeExtensible Attribute Value Inheritance State

10.1.0.0/16

NetworkOwnerJohnNative

10.1.0.1

Fixed AddressOwnerJohnInherited from 10.1.0.0/16
10.2.0.0/16

Network

OwnerSamNative
10.2.0.1Fixed AddressOwnerJaneOverridden


Example 9.1: Joining networks 10.0.0.0/8 with 10.1.0.0/16
You select the following option for the existing extensible attribute:

  •  Join networks 10.0.0.0/8 with 10.1.0.0/16.

Result:

Object

Type

Extensible Attribute

Extensible Attribute Value

Inheritance State

10.0.0.0/8

Network Container

Owner

John

Native

10.1.0.1

Fixed Address

Owner

John

Inherited from 10.0.0.0/8

10.2.0.1

Fixed Address

Owner

Jane

Overridden


Example 9.2: Joining networks 10.0.0.0/8 with 10.2.0.0/16
You select the following option for the existing extensible attribute:

  • Join networks 10.0.0.0/8 with 10.2.0.0/16.

Object

Type

Extensible Attribute

Extensible Attribute Value

Inheritance State

10.0.0.0/8

Network Container

Owner

Sam

Native

10.1.0.1

Fixed Address

Owner

Sam

Inherited from 10.0.0.0/8

10.2.0.1

Fixed Address

Owner

Jane

Overridden

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