AdeOS interactive tools

IPv6 Prefix Allocation Planner

Plan exact IPv6 address-space allocations without enumerating the full address range.

IPv6 Prefix Allocation

Deterministic child-block planning

Parent CIDR (IPv6)

Child Prefix Length

Requested Count

Starting Offset (zero-based)

Total Child Capacity

256

Remaining Capacity

252

Materialized Allocations

Allocations (4)

Index	CIDR	First Address	Last Address
0	2001:db8::/56	2001:db8::	2001:db8:0:ff:ffff:ffff:ffff:ffff
1	2001:db8:0:100::/56	2001:db8:0:100::	2001:db8:0:1ff:ffff:ffff:ffff:ffff
2	2001:db8:0:200::/56	2001:db8:0:200::	2001:db8:0:2ff:ffff:ffff:ffff:ffff
3	2001:db8:0:300::/56	2001:db8:0:300::	2001:db8:0:3ff:ffff:ffff:ffff:ffff

Compute exact child capacity and materialize a deterministic, contiguous slice of child prefixes.

A parent IPv6 CIDR, a target child prefix length, a requested count, and a zero-based starting offset.

Exact total capacity, remaining capacity, and the resulting child prefix allocations.

Allocate four /56 prefixes from a /48 site block for four regional offices.

Results support planning and learning; verify production changes against your platform and change controls.