# ifconfig -a
lo0:2: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1
        inet 127.0.0.1 netmask ff000000 
e1000g32000:2: flags=201000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4,CoS> mtu 1500 index 2
        inet 172.20.1.35 netmask ffffffe0 broadcast 172.20.1.63
# 
# hostname
ernie
# host bert
bert.coyhile.com has address 172.20.1.67
# ping bert
ICMP Host Unreachable from gateway ernie (172.20.1.35)
 for icmp from ernie (172.20.1.35) to bert.coyhile.com (172.20.1.67)
ICMP Host Unreachable from gateway ernie (172.20.1.35)
 for icmp from ernie (172.20.1.35) to bert.coyhile.com (172.20.1.67)
ICMP Host Unreachable from gateway ernie (172.20.1.35)
 for icmp from ernie (172.20.1.35) to bert.coyhile.com (172.20.1.67)
ICMP Host Unreachable from gateway ernie (172.20.1.35)
 for icmp from ernie (172.20.1.35) to bert.coyhile.com (172.20.1.67)
ICMP Host Unreachable from gateway ernie (172.20.1.35)
 for icmp from ernie (172.20.1.35) to bert.coyhile.com (172.20.1.67)
^C#