IPv6Planner - a basic IPv6 subnet planning tool

There are so many ways to create IPv6 Subnet plans. As discussed in IPv6 Buzz 180, an address plan is one of, if not the first step. Because getting started in the IPv6 subnet planning can be somewhat daunting, I wrote this go application to help bootstrap the process. This open source tool can be used along with the web version of ipv6utils, or the CLI tool.

It’s not the Swiss army knife, but it’s enough to build a starting point. It currently supports:

• Generating IPv6 address plans from a base subnet
• Supports multiple Points of Presence (POPs)
• Creates hierarchical subnet levels within each POP
• Calculates and displays available subnet counts at each level
• Multiple output formats (text, JSON, HTML)
• Interactive mode for guided input
• Comprehensive help system

Example output:

This tool is not intended to provide a comprehensive address plan.
It should be used to generate a top level heirarchy of IPv6 address plans.
IPv6 Address Plan
Base Subnet: 3fff:db8::/32
Number of POPs: 10
Preferred POP subnet size: /40
Subnet levels: /[48 52 56 64]

Global Subnet Counts:
  /48: 65536 available subnets
  /52: 1048576 available subnets
  /56: 16777216 available subnets
  /64: 4294967296 available subnets

POP Allocations:

POP 1: 3fff:db8::/40
  Level 1 (/48): 3fff:db8::/48 (Available: 256)
  Level 2 (/52): 3fff:db8::/52 (Available: 4096)
  Level 3 (/56): 3fff:db8::/56 (Available: 65536)
  Level 4 (/64): 3fff:db8::/64 (Available: 16777216)

POP 2: 3fff:db8:8000::/40
  Level 1 (/48): 3fff:db8:8000::/48 (Available: 256)
  Level 2 (/52): 3fff:db8:8000::/52 (Available: 4096)
  Level 3 (/56): 3fff:db8:8000::/56 (Available: 65536)
  Level 4 (/64): 3fff:db8:8000::/64 (Available: 16777216)

POP 3: 3fff:db8:4000::/40
  Level 1 (/48): 3fff:db8:4000::/48 (Available: 256)
  Level 2 (/52): 3fff:db8:4000::/52 (Available: 4096)
  Level 3 (/56): 3fff:db8:4000::/56 (Available: 65536)
  Level 4 (/64): 3fff:db8:4000::/64 (Available: 16777216)

POP 4: 3fff:db8:c000::/40
  Level 1 (/48): 3fff:db8:c000::/48 (Available: 256)
  Level 2 (/52): 3fff:db8:c000::/52 (Available: 4096)
  Level 3 (/56): 3fff:db8:c000::/56 (Available: 65536)
  Level 4 (/64): 3fff:db8:c000::/64 (Available: 16777216)

POP 5: 3fff:db8:2000::/40
  Level 1 (/48): 3fff:db8:2000::/48 (Available: 256)
  Level 2 (/52): 3fff:db8:2000::/52 (Available: 4096)
  Level 3 (/56): 3fff:db8:2000::/56 (Available: 65536)
  Level 4 (/64): 3fff:db8:2000::/64 (Available: 16777216)

POP 6: 3fff:db8:a000::/40
  Level 1 (/48): 3fff:db8:a000::/48 (Available: 256)
  Level 2 (/52): 3fff:db8:a000::/52 (Available: 4096)
  Level 3 (/56): 3fff:db8:a000::/56 (Available: 65536)
  Level 4 (/64): 3fff:db8:a000::/64 (Available: 16777216)

POP 7: 3fff:db8:6000::/40
  Level 1 (/48): 3fff:db8:6000::/48 (Available: 256)
  Level 2 (/52): 3fff:db8:6000::/52 (Available: 4096)
  Level 3 (/56): 3fff:db8:6000::/56 (Available: 65536)
  Level 4 (/64): 3fff:db8:6000::/64 (Available: 16777216)

POP 8: 3fff:db8:e000::/40
  Level 1 (/48): 3fff:db8:e000::/48 (Available: 256)
  Level 2 (/52): 3fff:db8:e000::/52 (Available: 4096)
  Level 3 (/56): 3fff:db8:e000::/56 (Available: 65536)
  Level 4 (/64): 3fff:db8:e000::/64 (Available: 16777216)

POP 9: 3fff:db8:1000::/40
  Level 1 (/48): 3fff:db8:1000::/48 (Available: 256)
  Level 2 (/52): 3fff:db8:1000::/52 (Available: 4096)
  Level 3 (/56): 3fff:db8:1000::/56 (Available: 65536)
  Level 4 (/64): 3fff:db8:1000::/64 (Available: 16777216)

POP 10: 3fff:db8:9000::/40
  Level 1 (/48): 3fff:db8:9000::/48 (Available: 256)
  Level 2 (/52): 3fff:db8:9000::/52 (Available: 4096)
  Level 3 (/56): 3fff:db8:9000::/56 (Available: 65536)
  Level 4 (/64): 3fff:db8:9000::/64 (Available: 16777216)

Download it here.