Exercise 1
List here the IP and MAC addresses for the 2 PCs:
Host IP Address
PC 1 192.168.1.1
MAC address
PC 2 192.168.1.2
On one of the PCs (Indicate which PC in your report), identify a captured message (Indicate whether it is a request or a reply), and list the Ethernet source & destination addresses in the message.
Identify a field in the Ethernet Header that shows that this frame is an Ethernet II frame rather than an IEEE802.3 frame.
Observed on PC......
Source MAC............
Destination MAC......
Ethernet II field.........
Observe the packet header details window. Report the number of bytes in the frame (“bytes on wire”) and find the number of Header bytes added by each layer. Show the breakdown of the number of bytes in the frame, by listing the payload and all headers and their length in bytes.
Number of bytes in frame
MAC Header in bytes (fields SA, DA, L/T)
IP Header Length in bytes

ICMP Header length in bytes
ICMP Payload
Exercise 2
Effect of payload size
Calculate the size of the total payload that must be carried by the Ethernet LAN in each case, taking into account the IP and ICMP headers.
Size of payload for 1472 bytes ping
Size of payload for 1473 bytes ping
Observe the messages captured by Wireshark for each of the 2 requests (ping 1472 and ping
1473), and explain how many frames are used in each case. Give the size of the frames.
1472 bytes ping:
frame of size
1473 bytes ping:
frame of size
frame of size
Find an example of such padded frame in the captured results. Explain how much padding has been added to this frame.