MAC

• Wikipedia:MAC
• wikipedia:MAC address

Activities

• Change your MAC address in Linux:
  • ifconfig {eth0|wlan0} hw ether CA:CA:CA:CA:CA:CA
  • ip link set eth# address 11:22:33:44:55:66

• Cisco IOS:
  • show mac address-table interface <switchport>
  • show interface mac-address
  • switchport port-security mac-address 0050.3e8d.6400

• Show your MAC address table:
  • arp -an

Related commands

• arp, arp -a
• ethtool
• IOS: show interface mac-accounting
• Cisco IOS: show interface mac-address
• Cisco IOS: show mac address-table
• Content Addressable Memory table
• MAC (message authentication code)
• /sys/class/net/eth1/address
• AWS: aws rds describe-db-instances | grep Address
• macOS
• sOPS: MAC mismatch

See also

• Address Resolution Protocol (ARP): arp (command), arping, arp spoofing, MAC, CAM, show ip arp, ARP table, Proxy ARP, Address
• Ethernet: MII, MDI, bonding, etherchannel, STP, ARP, MAC, STP, Jumbo frames, 802.1X, MTU, Ethernet In-Band Access (IBA), LACP, Multicast, Broadcast, SPI