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 can't resize a block to a CIDR lower than /126.
- The maximum allowed network size is /64.
- The new object can't 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 can't 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: