Use your output data and ping results to explain what happened in each of the ping commands. Which ping operations were successful and which were unsuccessful? Why?

What will be an ideal response?

2a). Successful ping. PC1 can successfully ping PC2. Both PC1 and PC3 have the same subnet mask and belong to the same network, PC3 responds to PC1's ARP request and later replies the ping request.
No. Time Source Destination Protocol Info
1 0.000000 00:50:bf:75:16:95 ff:ff:ff:ff:ff:ff ARP Who has 10.0.1.120? Tell 10.0.1.100
2 0.000092 00:50:bf:75:1f:32 00:50:bf:75:16:95 ARP 10.0.1.120 is at 00:50:bf:75:1f:32
3 0.000110 10.0.1.100 10.0.1.120 ICMP Echo (ping) request
4 0.000434 10.0.1.120 10.0.1.100 ICMP Echo (ping) reply
5 4.995873 00:50:bf:75:1f:32 00:50:bf:75:16:95 ARP Who has 10.0.1.100? Tell 10.0.1.120
6 4.995902 00:50:bf:75:16:95 00:50:bf:75:1f:32 ARP 10.0.1.100 is at 00:50:bf:75:16:95
PING 10.0.1.120 (10.0.1.120) 56(84) bytes of data.
64 bytes from 10.0.1.120: icmp_seq=1 ttl=64 time=0.463 ms
--- 10.0.1.120 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.463/0.463/0.463/0.000 ms
No. Time Source Destination Protocol Info
1 0.000000 00:50:bf:75:16:95 ff:ff:ff:ff:ff:ff ARP Who has 10.0.1.120? Tell 10.0.1.100
2 0.000092 00:50:bf:75:1f:32 00:50:bf:75:16:95 ARP 10.0.1.120 is at 00:50:bf:75:1f:32
3 0.000110 10.0.1.100 10.0.1.120 ICMP Echo (ping) request
4 0.000434 10.0.1.120 10.0.1.100 ICMP Echo (ping) reply
5 4.995873 00:50:bf:75:1f:32 00:50:bf:75:16:95 ARP Who has 10.0.1.100? Tell 10.0.1.120
6 4.995902 00:50:bf:75:16:95 00:50:bf:75:1f:32 ARP 10.0.1.100 is at 00:50:bf:75:16:95
PING 10.0.1.120 (10.0.1.120) 56(84) bytes of data.
64 bytes from 10.0.1.120: icmp_seq=1 ttl=64 time=0.463 ms
--- 10.0.1.120 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.463/0.463/0.463/0.000 ms
No. Time Source Destination Protocol Info
1 0.000000 00:50:bf:75:16:95 ff:ff:ff:ff:ff:ff ARP Who has 10.0.1.101? Tell 10.0.1.100
2 0.000114 00:50:bf:75:16:94 00:50:bf:75:16:95 ARP 10.0.1.101 is at 00:50:bf:75:16:94
3 0.000134 10.0.1.100 10.0.1.101 ICMP Echo (ping) request
4 0.000230 10.0.1.101 10.0.1.100 ICMP Echo (ping) reply
5 4.997546 00:50:bf:75:16:94 00:50:bf:75:16:95 ARP Who has 10.0.1.100? Tell 10.0.1.101
6 4.997575 00:50:bf:75:16:95 00:50:bf:75:16:94 ARP 10.0.1.100 is at 00:50:bf:75:16:95
PING 10.0.1.101 (10.0.1.101) 56(84) bytes of data.

26
64 bytes from 10.0.1.101: icmp_seq=1 ttl=64 time=0.257 ms
--- 10.0.1.101 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.257/0.257/0.257/0.000 ms
2c). Unsuccessful ping. PC1 assumes that PC4 is on the same subnet as it (since higher 24 bits match).
PC1 sends an ARP request for PC4, PC4 replies to the ARP request. PC1 sends the ping request which is
received by PC4. The last 8 bits of PC1 and PC4 are 0110 0100 and 0111 1001 respectively. PC4 which
has a subnet mask of 28, compares the high four bits of the above bytes and determines that the PC1 does
not belong to the same subnet as it, hence it does not respond to the ping request.
No. Time Source Destination Protocol Info
1 0.000000 00:50:bf:75:16:95 ff:ff:ff:ff:ff:ff ARP Who has 10.0.1.121? Tell 10.0.1.100
2 0.000095 00:50:bf:74:ff:90 00:50:bf:75:16:95 ARP 10.0.1.121 is at 00:50:bf:74:ff:90
3 0.000114 10.0.1.100 10.0.1.121 ICMP Echo (ping) request
PING 10.0.1.121 (10.0.1.121) 56(84) bytes of data.
--- 10.0.1.121 ping statistics ---
1 packets transmitted, 0 received, 100% packet loss, time 0ms
2d). Unsuccessful ping. PC4 compares the IP addresses using its subnet mask and determines that PC1
does not belong to its subnet. Hence it displays an error message, Network is unreachable.
No. Time Source Destination Protocol Info
connect: Network is unreachable
2e). Unsuccessful ping. PC2 compares the IP addresses using its subnet mask and determines that PC4
does not belong to the same subnet as it. Hence it displays an error message, Network is unreachable.
No. Time Source Destination Protocol Info
connect: Network is unreachable
2f). Unsuccessful ping. PC2 compares the IP addresses using its subnet mask and determines that PC3
does not belong to the same subnet as it. Hence it displays an error message, Network is unreachable.
No. Time Source Destination Protocol Info