Resizing IPv6 blocks and networks - BlueCat Address Manager - 8.3.0

Address Manager Administration Guide

prodname
BlueCat Address Manager
version_custom
8.3.0
Resize IPv6 blocks and networks in either the Unique Local Address Space or the Global Unicast Address Space to make them larger or smaller.
Note: Users must have change, add, or full access rights on IPv6 objects to split or resize IPv6 blocks.
  • You cannot resize a block to a CIDR lower than /126.
  • The maximum allowed network size is /64.
  • The new object cannot exceed the address space or be of the same size as its parent block.
  • The resized object must contain some of its previous address space.
  • Blocks and networks cannot be resized to non-CIDR boundaries.
  • If a child object is no longer covered by the range of the resized object, the child object becomes a sibling object to the newly resized object. The child object must be completely covered or uncovered by the newly resized object or you will receive an error.
  • If an adjacent block is completely covered by a resized block, a confirmation page opens and you need to confirm that you want the adjacent block to become a child of the resized block. The adjacent block must either be entirely covered or not covered by the resized block.

To resize an IPv6 block or network:

  1. Select the IP Space tab. Tabs remember the page you last worked on, so select the tab again to ensure you're on the Configuration information page.
  2. From the configuration drop-down menu, select a configuration.
  3. Click the IPv6 tab. In the IPv6 Blocks section, click the FC00::/6 or the 2003::/3 address space.
  4. Under Address Space, select the block or network that you want to resize.
  5. Click the menu beside the block/network name and select Resize.
  6. Under Resize Range, enter the block or network size or the starting IPv6 address with the block or network size for resizing the IPv6 object:
    • Prefix Size—select this option to specify the block or network size using CIDR notation. Enter the block or network size. For example, 64.
    • Starting Address—select this option to specify the block or network size with the starting IPv6 address. Enter the IPv6 address in the Starting Address field. For example, 2001:DB8::.
      • Size—enter the size of the block or network using CIDR notation. For example, 64. You do not need to enter a forward slash (/).
  7. Click Yes. The Resize IPv6 Block/Network Confirmation page opens.
    Note: If the block being resized covers adjacent blocks or if it contains child objects (such as blocks or networks), a Change Control section appears in the Resize IPv6 Block/Network Confirmation page to alert you of the following:
    • If you are resizing the block into a larger block, adjacent blocks will be included in the resized block.
    • If you are resizing the block into a smaller block, child objects will be excluded from the resized block.
  8. Under Change Control, add comments, if required.
  9. Click Confirm.