MAC Address Generator
Generate random MAC addresses with configurable format, case and prefix.
The MAC Address Generator creates random 48-bit MAC addresses with selectable separators, letter case and count. It can enforce unicast or multicast and locally administered bits, or keep a custom prefix.
How to use
- Choose count, separator and letter case.
- Optionally enter a custom prefix and set unicast or local flags.
- Generate and copy the address list.
Frequently asked questions
What does locally administered mean?
It sets the local bit so the address is not tied to a vendor OUI.
Can I keep a custom prefix?
Yes, a six-byte prefix is preserved exactly when provided.
Are these addresses valid on a network?
They are formatted as valid MAC addresses, but assigning random addresses on a live network should be done carefully.
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