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
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