Resolving MAC address

From: Olivier Nicole (on_at_cs.ait.ac.th)
Date: 03/24/05

  • Next message: Charlie Schluting: "Re: Resolving MAC address" 
    Date: Thu, 24 Mar 2005 10:39:51 +0700 (ICT)
To: freebsd-net@freebsd.org

    Hi,

    Is there a command, or a short C code that I could use to resolve the
    MAC address for a given IP address?

    # ping -c 1 10.0.0.1
    PING 10.0.0.1 (10.0.0.1): 56 data bytes
    64 bytes from 10.0.0.1: icmp_seq=0 ttl=64 time=0.974 ms

    --- 10.0.0.1 ping statistics ---
    1 packets transmitted, 1 packets received, 0% packet loss
    round-trip min/avg/max/stddev = 0.974/0.974/0.974/0.000 ms
    # arp 10.0.0.1
    ? (10.0.0.1) at 00:e0:29:ad:5a:aa on em0 [ethernet]

    will do the trick, but it is a bit too heavy for the purpose, I'd
    prefer a solution that only send an ARP request.

    Best regards,

    olivier
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  • Next message: Charlie Schluting: "Re: Resolving MAC address"

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