Please answer the following questions based on the frame number 54 of the Wireshark
capture file:
1. What protocol is used at Layer 3 of the OSI model?
IP
2. What protocol is used at Layer 4 of the OSI model?
PCP
3. What protocol is used at the Application Layer of TCP/IP suite?
HTTP
4. What is the sender’s physical address?
00:21:85:cc:9e:ea
5. What is the sender’s logical address?
10.2.4.1
6. What is the destination MAC address encapsulated in OSI data link layer header?
00:0e:84:3b:e4:c0
7. What is the destination IP address encapsulated in OSI network layer header?
119:160:246:241
8. What is the value of the field “type” in frame header? What does this value mean?
And what do you think about its purpose?
0x0800 對應到 IP 位址的通訊協定
9. What is the value of the field “protocol” in packet header? What does this value
mean? And what do you think about its purpose?
6 / 幫助 packet header 找到位址
10. Do you think that the destination MAC address and the destination IP address are
the same host’s addresses?
不同