% arp -a
  gilda.cmp.unicamp.br (143.106.30.16) at 8:0:5a:cd:56:f6 [ethernet]
  roma.cmp.unicamp.br (143.106.30.9) at 14:3:10:6:30:0 [ethernet]
  panoramix.cmp.unicamp.br (143.106.30.11) at 8:0:20:9:71:6f [ethernet]