Date: Thu, 24 Mar 2005 10:39:51 +0700 (ICT) From: Olivier Nicole <on@cs.ait.ac.th> To: freebsd-net@freebsd.org Subject: Resolving MAC address Message-ID: <200503240339.j2O3dpoN099306@banyan.cs.ait.ac.th>
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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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