Article	Figure 1	Figure 2	Figure 3	Figure 4
Figure 5	Figure 6	Figure 7	Figure 8	Table 1
Table 2	jul99.tar

Figure 5: UNIX ping reporting network link problems

# ping -v 10.1.1.1
PING 10.1.1.1: 64 byte packets
36 bytes from 192.168.23.180: icmp_type=3 (Dest Unreachable)
36 bytes from 192.168.23.180: icmp_type=3 (Dest Unreachable)