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MAC Address Validator

Validate MAC addresses and lookup vendors.

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A Developer's Guide to the MAC Address Validator & Generator

The MAC Address Validator & Generator is a comprehensive tool for network administrators and developers. It allows you to validate MAC addresses, look up the hardware vendor, and generate random MAC addresses for testing.

Validator Features

  • Format Validation: Checks if a MAC address conforms to standard formats (colon-separated, hyphen-separated, or dot-separated).
  • Vendor Lookup (OUI): Identifies the manufacturer of the network hardware by looking up the first three bytes of the MAC address (the Organizationally Unique Identifier) in a curated database.
  • Multiple Formats Display: For a valid MAC address, it displays the address in all common formats for easy copying.

Generator Features

  • Random MAC Generation: Create a valid, random MAC address with a single click.
  • Vendor-Specific Generation: You can choose a specific vendor (OUI) from the dropdown list to generate a MAC address that appears to be from that manufacturer. This is useful for specific testing scenarios.

How to Use

Validator

  1. Select the "Validator" Tab.
  2. Enter a MAC Address: Type or paste the MAC address you want to check into the input field.
  3. Click Validate: Press the "Validate" button.
  4. Review the Results:
    • An alert will tell you if the MAC address is Valid or Invalid.
    • If valid, you will see the identified Vendor and the address formatted in colon, hyphen, and dot notations.

Generator

  1. Select the "Generator" Tab.
  2. (Optional) Choose a Vendor: If you need a MAC address from a specific manufacturer, select one from the "Vendor Prefix" dropdown. Otherwise, leave it as "Any".
  3. Click Generate: Press the "Generate" button. A new random MAC address will be created. You can press it multiple times to get new addresses.
  4. Copy the Result: Use the copy icon next to the generated address to copy it to your clipboard.