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IPv6 ULA Prefix

Generate a random fd00::/8 local IPv6 /48 prefix.

Input

Press the button to generate with browser secure randomness.

Input stays in this browser. Nothing is uploaded or stored.

Result

Run the tool to see its result here.

How to use this tool

Generate a prefix, then assign subnet IDs within your private network plan.

When not to use it

A generated ULA is not globally routed and collision probability is low, not zero.