What is IPv6 Range Calculator
This tool calculates IPv6 prefix ranges and also provides SLAAC generation, EUI-64 conversion, and subnet splitting.
Key Features
- Compute prefix range and address counts.
- Generate SLAAC address from prefix + MAC.
- Convert MAC to EUI-64 interface ID.
- Split parent prefix into child subnets.
Steps
- Enter IPv6 prefix in Range tab.
- Review start/end addresses and totals.
- Use SLAAC/EUI-64 tabs with MAC input.
- Generate child subnets in Subnet tab.
FAQ
Why is prefix marked invalid?
Usually caused by invalid IPv6 notation or prefix length out of allowed bounds.
What limits subnet count?
Subnet count is constrained by the difference between parent prefix and target subnet prefix length.