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mac-address [2025/10/03 16:12] – plidamac-address [2025/10/03 17:36] (current) – plida
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 MAC addresses can technically be changed, just like [[ip-address|IP addresses]]. For example, with ifconfig on Linux. MAC addresses can technically be changed, just like [[ip-address|IP addresses]]. For example, with ifconfig on Linux.
 +
 +While IP addresses work end to end, MAC addresses work hop to hop.
  
 MAC structure: MAC structure:
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 In the first octet the last 2 bits are significant: one determines if the address is universal vs local. Universal address is assigned by the manufacturer, while the local one is set by the network administrator. The other bit determines if it's unicast vs multicast. In the first octet the last 2 bits are significant: one determines if the address is universal vs local. Universal address is assigned by the manufacturer, while the local one is set by the network administrator. The other bit determines if it's unicast vs multicast.
  
-Special addresses: +Special addresses: \\ 
-FF:FF:FF:FF:FF:FF - broadcasting+FF:FF:FF:FF:FF:FF - broadcasting \\
 33:33:00:00:00:00 - limited broadcasting 33:33:00:00:00:00 - limited broadcasting
  
mac-address.1759507955.txt.gz · Last modified: by plida