Creating Address Ranges

To create an address range, complete the following:

1. In the Infoblox Portal, click Configure > Networking > IPAM/DHCP > Address Spaces.
2. Click IP Space > Address Block > corresponding IPv4 Subnet or IPv6 Subnet.
3. On the Subnet page, select Range from the Create drop-down list.
4. On the Create Range page, specify the following:
   
   • Subnet: The IP address and the netmask of the subnet is displayed.
   • Start: Enter the first available IP address in the address range.

   • End: Enter the last available IP address in the address range.

   • Name: Optionally, enter a name for the address range.

   • Description: Enter additional information about the address range.

   • Service Instance: Choose a Service Instance or HA Group from the column selector. To choose any service instance used by the parent click Use Parent Service Instance. Use the same service instance or HA Group for a subnet and all its associated ranges. 

   • Disable for DHCP Protocol: Select the check box to stop the DHCP server from offering addresses in this range. 

   • Tags: For information about tags, see Managing Tags.
     

   • Configure the following components of DHCP Configuration:
     • DHCP Options: The values are inherited from the Global DHCP Configuration by default. For more information on configuring DHCP options in Global DHCP Configuration, see Configuring DHCP Options. You can configure the inheritance for each item granularly. For more information, see Granular Inheritance of DHCP Options. 
     • Filters: You can associate multiple filters with a range, and Universal DDI will create a new filter based on them. The filter follows the following rules:

       • If there are any allow filters the client must match at least one of them but does not need to match all of them.

       • If there are any deny filters the client must NOT match ANY of them.

       • If a client is covered by both an allow and a deny filter, the deny filter takes precedence.

     • Configure the following:
       • Filter Name: Choose the filter from the drop-down. The hardware filter or option filter must be created before it is visible in the drop-down. 
       • Filter Type: The filter type is automatically shown based on the selected Filter Name. For example, it can be a Hardware Filter or an Option Filter.
       • Permission: Choose Allow to allow leases based on the DHCP filter. Choose Deny to deny leases based on the filter in the range.  

5. Click Save & Close to save the details or click Cancel to exit.

For additional information on inheritance, see About DHCP Inheritance.