Monday, February 8, 2010

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Obtain IP from a MAC address

does not happen often but if I know which IP took a network device which, for some reason, I can not access directly but which I know the MAC Address I could use the following steps:
  • (Clearing the ARP cache )
  • $ ip neigh flush all
  • (Launch PING across the sub- with fping)
  • $ fping-c 1-g-q 192.168.1.0/24
  • (use grep to search and filter MAC)
  • $ arp-n

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