MAC to IP Converter

Convert MAC addresses to IPv6 link-local addresses using EUI-64 rules. This is useful for network diagnostics, IPv6 learning, and interface identification workflows.

Convert MAC to IPv6 Link-Local
Convert a MAC address to an IPv6 link-local address
MAC to IPv6 Conversion Process

IPv6 link-local addresses are automatically generated from MAC addresses using the EUI-64 format:

  1. Split the MAC address into two 24-bit parts
  2. Insert FFFE in the middle
  3. Invert the 7th bit (universal/local bit) of the first byte
  4. Prepend the link-local prefix FE80::

This conversion follows the standard defined in RFC 4291 for IPv6 addressing.

How to Use the MAC to IP Converter

  1. Enter a MAC address: Type a valid MAC address such as 00:1A:2B:3C:4D:5E.
  2. Choose formatting options: Set your preferred MAC format and IPv6 display format if available.
  3. Run conversion: Convert the MAC value to its IPv6 link-local form using the EUI-64 method.
  4. Copy and use the result: Use the converted address for diagnostics, configuration checks, and documentation.

Quick MAC to IPv6 Examples

00:1A:2B:3C:4D:5E

FE80::021A:2BFF:FE3C:4D5E

A4:B1:C1:D2:E3:F4

FE80::A6B1:C1FF:FED2:E3F4

54:52:00:AB:CD:EF

FE80::5652:00FF:FEAB:CDEF

Frequently Asked Questions

Can a MAC address be converted directly to an IPv4 address?

Not reliably. MAC and IPv4 addresses belong to different networking layers. This tool converts MAC addresses to IPv6 link-local format using EUI-64.

What is EUI-64 in IPv6?

EUI-64 is a method that builds a 64-bit interface identifier from a MAC address by inserting FFFE and flipping the universal/local bit.

Why does the converted address start with FE80::?

FE80:: is the reserved prefix for IPv6 link-local addresses, which are valid on the local network segment.

Is this MAC to IP converter free?

Yes. The converter is free and runs in your browser.