Random MAC Address Generator

Generate valid random MAC addresses in different formats and vendor types for testing and development

How to Use the MAC Address Generator

1. Set Parameters: Choose the number of addresses (1-100), format, and vendor type

2. Generate: Click the generate button to create random MAC addresses

3. Copy Addresses: Click the copy button next to any address or use "Copy All" for multiple addresses

4. Use Addresses: Use the generated addresses for testing, development, or network configuration

MAC Address Formats

Colon: aa:bb:cc:dd:ee:ff (most common)

Hyphen: aa-bb-cc-dd-ee-ff (Windows)

Dot: aa.bb.cc.dd.ee.ff (Cisco)

No Separator: aabbccddeeff (raw format)

Cisco: aabb.ccdd.eeff (Cisco specific)

Vendor Types

Random: Completely random MAC address

Apple: Uses Apple's OUI prefix (00:1b:63)

Cisco: Uses Cisco's OUI prefix (00:1b:0c)

Intel: Uses Intel's OUI prefix (00:1b:21)

Microsoft: Uses Microsoft's OUI prefix (00:15:5d)

VMware: Uses VMware's OUI prefix (00:0c:29)

Locally Administered: Addresses for local use only

Address Types

• Unicast: Addresses that identify a single network interface

• Multicast: Addresses that can be received by multiple interfaces

• Global: Universally unique addresses (UAA)

• Local: Locally administered addresses (LAA) for private use

Common Use Cases

• Network Testing: Generate test MAC addresses for network simulations

• Virtual Machines: Create unique MAC addresses for VMs

• Development: Use in software development and testing environments

• Privacy: Generate random MAC addresses for privacy protection

• Network Configuration: Create addresses for network device configuration

• Security Testing: Use in penetration testing and security assessments

MAC Address Structure

• OUI (Organizationally Unique Identifier): First 3 bytes identify the manufacturer

• NIC (Network Interface Controller): Last 3 bytes are assigned by the manufacturer

• Total Length: 48 bits (6 bytes) represented as 12 hexadecimal digits

• Bit 0: 0 = unicast, 1 = multicast

• Bit 1: 0 = global, 1 = locally administered