MAC address generator

MAC address generator calculator can be used to generate random MAC addresses for network testing, network configuration, or privacy protection purposes.

Input Parameters

OUI is the first 24 bits of a MAC address assigned to a company or organization

Calculation Results

Generated MAC Address

Format: XX:XX:XX:XX:XX:XX (where X is a hexadecimal digit)

Calculation Formula

A MAC address consists of 6 groups of 2 hexadecimal digits separated by colons:

MAC = OUI + Suffix
Where:
OUI (Organizationally Unique Identifier): First 24 bits assigned to a company
Suffix: Randomly generated or user-defined last 24 bits

MAC address generator Calculator Usage Guide

Learn how to use the MAC address generator calculator and its working principles

How to use the MAC address generator

  1. Select the MAC address type from the dropdown menu:
    • Random MAC Address: Generates a completely random MAC address
    • Local Management MAC: Generates a MAC address with Dell's OUI (00:50:56) and random suffix
    • Factory Default MAC: Generates a MAC address with Intel's OUI (00:14:22) and random suffix
  2. Optionally, enter a custom OUI in XX:XX:XX format. If left empty, a default OUI will be used.
  3. Check the "Generate random suffix" box if you want to generate a random last 24 bits.
  4. Click the "Generate" button to create a MAC address.
  5. Use the "Copy" button to copy the generated MAC address to your clipboard.

Understanding MAC Addresses

A MAC address (Media Access Control address) is a unique identifier assigned to network interfaces for communications on the physical network segment.

The format is XX:XX:XX:XX:XX:XX, where:

  • The first 24 bits (or three octets) identify the manufacturer (Organizationally Unique Identifier or OUI)
  • The last 24 bits are assigned by the manufacturer and can be unique or random

Common Uses

  • Network testing and troubleshooting
  • Creating virtual machines with unique network identities
  • Configuring network devices without causing MAC address conflicts
  • Enhancing privacy by using temporary MAC addresses