# arp rtfm.mit.edu rtfm.mit.edu (18.70.0.209) -- no entry # arp -a par.cac.washington.edu (140.142.113.100) at 0:0:c:1:f1:21 # ping ren.cac 64 1 PING ren.cac.washington.edu: 64 data bytes 72 bytes from 140.142.113.28: icmp_seq=0. time=8. ms ----ren.cac.washington.edu PING Statistics---- 1 packets transmitted, 1 packets received, 0% packet loss round-trip (ms) min/avg/max = 8/8/8 # arp -a par.cac.washington.edu (140.142.113.100) at 0:0:c:1:f1:21 ren.cac.washington.edu (140.142.113.28) at 8:0:20:13:f:bd