MAC to IPv6
Try: 00:1A:2B:3C:4D:5E
00-1A-2B...
IPv6 Link-Local Address
...
IPv6 to MAC
Try: fe80::...4d5e
Physical Address (MAC)
...
How it works
MAC to IPv6
We convert the 48-bit MAC address into a 64-bit EUI-64 interface identifier by inserting `ff:fe` in the middle and inverting the 7th bit (Universal/Local bit). Then we prefix it with `fe80::`.
IPv6 to MAC
We extract the EUI-64 identifier from the IPv6 address, check for the `ff:fe` signature, invert the 7th bit back, and format it as a standard 6-byte hexadecimal MAC address.
- Compliant with RFC 4291
- Supports zero-compression (e.g.
::)