Paste-first
Network
ready

IPv6 ULA Generator

Generate RFC 4193 local IPv6 ULA prefixes and /64 blocks.

What IPv6 ULA Generator does

local-first

IPv6 ULA Generator creates local fd00::/8 Unique Local Address prefixes according to RFC 4193. Generate a random /48 prefix for local networks, or use the deterministic timestamp plus MAC-address method to derive a Global ID, first /64 subnet, and last /64 subnet locally.