liquidsnake
Joined 15 years ago
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Member since
Jan 22
Joined 15 years ago
Both IPs and MACs can be changed by the administrators and both can be set such that duplicates exist in the network. However the fact that MACs are set by manufacturer makes them impossible to route as the values are not related to the network locations but related to hardware origin.
Edit: As one of the replies stated, they are also used in Stateless autoconfig in IPV6 (see: https://en.wikipedia.org/wiki/IPv6_address#Modified_EUI-64)