在线 IPv6 ULA（Unique Local Address）生成器，生成符合 RFC 4193 标准的 fd::/8 前缀地址段，适合内网 IPv6 部署规划，不会与公网地址冲突。
fc00::/7. Locally assigned addresses use prefix fd00::/8 with a 40-bit random Global ID. Not routable on the public internet.fd9d:9c2e:f32600::/48Example subnet addresses:
fd9d:9c2e:f32600:0001::1/128fd9d:9c2e:f32600:0002::1/128Address Breakdown
fd (0xFD — locally assigned ULA)9d9c2ef3260000–FFFF (16-bit, assign per subnet)64-bit (assign per host)fd07:3a29:90ba00::/48Example subnet addresses:
fd07:3a29:90ba00:0001::1/128fd07:3a29:90ba00:0002::1/128Address Breakdown
fd (0xFD — locally assigned ULA)073a2990ba0000–FFFF (16-bit, assign per subnet)64-bit (assign per host)fd7d:4ce3:2eb500::/48Example subnet addresses:
fd7d:4ce3:2eb500:0001::1/128fd7d:4ce3:2eb500:0002::1/128Address Breakdown
fd (0xFD — locally assigned ULA)7d4ce32eb50000–FFFF (16-bit, assign per subnet)64-bit (assign per host)