Report for Lab 4-2: ICMP
Name:
Student ID:
Date:
Part I
1
Destination IP address:
2
Number ping messages sent:
3
Number of bytes of data sends with each ping message:
4
The round-trip time for each packet:
5
Minimum round-trip:
Average round-trip:
Maximum round-trip:
Part II
1
Destination IP address of Echo request ICMP messages:
Does the result agree with the information in Part I of the lab?
2
Number of Echo request ICMP packet:
Number of Echo reply ICMP:
Does the result agree with the information in Part I of the lab?
3
Number bytes of data are carried by each ICMP packet:
Does the result agree with the information in Part I of the lab?
4
Difference between the time the first Echo message was sent and the first reply message was received:
Does the result agree with the information in Part I of the lab?
5
6
a. Fields that are the same in Echo request and Echo reply:
Reason:
a. Fields that are different in Echo request and Echo reply:
Reason:
a. Fields that are the same in Echo requests:
Reason:
a. Fields that are different in Echo request:
Reason:
Part III
1
Number of probe packets for each TTL value:
2
IP address of the default router:
3
How many routers are in between the source and destination?
4
IP address of the destination:
Part IV
1
Number of ICMP packets in the packet list pane:
2
Relation between the number of ICMP packets to the number of network visited in the traceroute:
3
Content of Echo request ICMP packet:
Content of Time-to-live exceeded ICMP packet:
How the content of the Time-to-live exceeded ICMP packet is related to the content of the Echo
request ICMP packet?
4
TTL value of the last echo request ICMP packets:
The number of routers between the host and destination:
5
Source IP address of the echo reply ICMP packets:
Which entity does this address define?