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Next, answer the following questions, based on the contents of the Ethernet frame containing the first byte of the HTTP response message. 5. What is the value of the Ethernet source address? Is this the address of your computer, or of gaia.cs.umass.edu (Hint: the answer is no). What device has this as its Ethernet address? 6. What is the destination address in the Ethemet frame? Is this the Ethermet address of your computer? 7. Give the hexadecimal value for the two-byte Frame type field. What upper layer protocol does this correspond to? 8. How many bytes from the very start of the Ethernet frame does the ASCII "O" in "OK" (i.e., the HTTP response code) appear in the Ethernet frame?

Next, answer the following questions, based on the contents of the Ethernet frame containing the first byte of the HTTP response message. 5. What is the value of the Ethernet source address? Is this the address of your computer, or of gaia.cs.umass.edu (Hint: the answer is no). What device has this as its Ethernet address? 6. What is the destination address in the Ethemet frame? Is this the Ethermet address of your computer? 7. Give the hexadecimal value for the two-byte Frame type field. What upper layer protocol does this correspond to? 8. How many bytes from the very start of the Ethernet frame does the ASCII "O" in "OK" (i.e., the HTTP response code) appear in the Ethernet frame?

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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your computerincimal value for the two-byte Frame type field. What upper layer protocol 8:19 HW2.pdf •.. 2 of 3 Next, answer the following questions, based on the contents of the Ethermet frame containing the first byte of the HTTP response message. 5. What is the value of the Ethernet source address? Is this the address of your computer, or of gaia.cs.umass.edu (Hint: the answer is no). What device has this as its Ethernet address? 6. What is the destination address in the Ethemet frame? Is this the Ethernet address of your computer? 7. Give the hexadecimal value for the two-byte Frame type field. What upper layer protocol does this correspond to? 8. How many bytes from the very start of the Ethernet frame does the ASCII "O" in "OK" (i.e., the HTTP response code) appear in the Ethernet frame? Subnetting 1 As a Network Administrator you have a Private Class C Network with default subnet mask and to form 4 subnets with: A: 82 hosts, B: 31 hosts, C: 29 Hosts, D: 12 Hosts. Answer the you wan following questions for each subnet: Network address: Subnet mask: IP address range: Broadcast address: Possible Subnets: 2 Repeat exercise 1 with same Private Class C network with different variation. 3 The expected growing for your company is x10 for the upcoming year. Now you must design a new subnets with any class but with default subnet masks: A: 820 hosts, B: 310 hosts, C: 290 Hosts, D: 120 Hosts. Answer the following questions for each subnet: Network address: Subnet mask: IP address range: Broadcast address: 4 Repeat exercise 3 without wasting IP addresses. Traceroute and Ping 1. Traceroute any website form your computer capture data traffic. 2. Based on captured traffic simulate traceroute with Ping command. 3. Explain differences and similarities between ping and traceroute. Broadcast and Collision Domains 1: Draw a network diagram with 7 Broadcast and 22 collision domains using devices below at least once in the environment: Router Switch Hub End devices 2: Mention types of UTP cables in-between devices for the network in exercise 1.
Transcribed Image Text:your computerincimal value for the two-byte Frame type field. What upper layer protocol 8:19 HW2.pdf •.. 2 of 3 Next, answer the following questions, based on the contents of the Ethermet frame containing the first byte of the HTTP response message. 5. What is the value of the Ethernet source address? Is this the address of your computer, or of gaia.cs.umass.edu (Hint: the answer is no). What device has this as its Ethernet address? 6. What is the destination address in the Ethemet frame? Is this the Ethernet address of your computer? 7. Give the hexadecimal value for the two-byte Frame type field. What upper layer protocol does this correspond to? 8. How many bytes from the very start of the Ethernet frame does the ASCII "O" in "OK" (i.e., the HTTP response code) appear in the Ethernet frame? Subnetting 1 As a Network Administrator you have a Private Class C Network with default subnet mask and to form 4 subnets with: A: 82 hosts, B: 31 hosts, C: 29 Hosts, D: 12 Hosts. Answer the you wan following questions for each subnet: Network address: Subnet mask: IP address range: Broadcast address: Possible Subnets: 2 Repeat exercise 1 with same Private Class C network with different variation. 3 The expected growing for your company is x10 for the upcoming year. Now you must design a new subnets with any class but with default subnet masks: A: 820 hosts, B: 310 hosts, C: 290 Hosts, D: 120 Hosts. Answer the following questions for each subnet: Network address: Subnet mask: IP address range: Broadcast address: 4 Repeat exercise 3 without wasting IP addresses. Traceroute and Ping 1. Traceroute any website form your computer capture data traffic. 2. Based on captured traffic simulate traceroute with Ping command. 3. Explain differences and similarities between ping and traceroute. Broadcast and Collision Domains 1: Draw a network diagram with 7 Broadcast and 22 collision domains using devices below at least once in the environment: Router Switch Hub End devices 2: Mention types of UTP cables in-between devices for the network in exercise 1.
8:19 HW2.pdf •.. ARP Answer the following questions using the Wireshark file "ethernet-ethereal-trace-1": 1. What are the hexadecimal values for the source and destination addresses in the Ethemet frame containing the ARP request message? 2. Give the hexadecimal value for the two-byte Ethernet Frame type field. What upper layer protocol does this correspond to? 3. A readable, detailed discussion of ARP is available at http://www.erg.abdn.ac.uk/users/gorry/course/inet-pages/arp.html. a) How many bytes from the very beginning of the Ethemet frame does the ARP opcode field begin? b) What is the value of the opcode field within the ARP-payload part of the Ethernet frame in which an ARP request is made? c) Does the ARP message contain the IP address of the sender? d) Where in the ARP request does the "question" appear – the Ethernet address of the machine whose corresponding IP address is being queried? 4. Now find the ARP reply that was sent in response to the ARP request. a) How many bytes from the very beginning of the Ethernet frame does the ARP opcode field begin? b) What is the value of the opcode field within the ARP-payload part of the Ethernet frame in which an ARP response is made? c) Where in the ARP message does the "answer" to the earlier ARP request appear - the IP address of the machine having the Ethermet address whose corresponding IP address is being queried? 5. What are the hexadecimal values for the source and destination addresses in the Ethemet frame containing the ARP reply message? 6. But there is yet another computer on this network, as indicated by packet 6 - another ARP request. Why is there no ARP reply (sent in response to the ARP request in packet in the packet trace? Ethernet Answer the following questions, based on the contents of the Ethernet frame containing the HTTP GET message using the Wireshark file "ethernet-ethereal-trace-l": 1. What is the 48-bit Ethernet address of your computer? 2. What is the 48-bit destination address in the Ethernet frame? Is this the Ethernet address of gaia.cs.umass.cedu? (Hint: the answer is no). What device has this as its Ethernet address? [Note: this is an important question, and one that students sometimes get wrong. Re-read pages 468-469 in the text and make sure you understand the answer here.] 3. Give the hexadecimal value for the two-byte Frame type field. What upper layer protocol does this correspond to? 4. How many bytes from the very start of the Ethernet frame does the ASCII "G" in "GET" appear in the Ethernet frame? Next, answer the following questions, based on the contents of the Ethermet frame containing the first byte of the HTTP response message. 5. What is the value of the Ethernet source address? Is this the address of your computer, or of gaia.cs.umass.edu (Hint: the answer is no). What device has this as its Ethernet address? 6. What is the destination address in the Ethemet frame? Is this the Ethernet address of your computer? 7. Give the hexadecimal value for the two-byte Frame type field. What upper layer protocol does this correspond to? 8. How many bytes from the very start of the Ethernet frame does the ASCII "O" in "OK" (i.e., the HTTP response code) appear in the Ethernet frame? Subnetting I As a Network Administrator you have a Private Class C Network with default subnet mask and you want to form 4 subnets with: A: 82 hosts, B: 31 hosts, C: 29 Hosts, D: 12 Hosts. Answer the following questions for each subnet: Network address: Subnet mask: IP address range: Broadcast address: Possible Subnets: 2 Repeat exercise I with same Private Class C network with different variation.
Transcribed Image Text:8:19 HW2.pdf •.. ARP Answer the following questions using the Wireshark file "ethernet-ethereal-trace-1": 1. What are the hexadecimal values for the source and destination addresses in the Ethemet frame containing the ARP request message? 2. Give the hexadecimal value for the two-byte Ethernet Frame type field. What upper layer protocol does this correspond to? 3. A readable, detailed discussion of ARP is available at http://www.erg.abdn.ac.uk/users/gorry/course/inet-pages/arp.html. a) How many bytes from the very beginning of the Ethemet frame does the ARP opcode field begin? b) What is the value of the opcode field within the ARP-payload part of the Ethernet frame in which an ARP request is made? c) Does the ARP message contain the IP address of the sender? d) Where in the ARP request does the "question" appear – the Ethernet address of the machine whose corresponding IP address is being queried? 4. Now find the ARP reply that was sent in response to the ARP request. a) How many bytes from the very beginning of the Ethernet frame does the ARP opcode field begin? b) What is the value of the opcode field within the ARP-payload part of the Ethernet frame in which an ARP response is made? c) Where in the ARP message does the "answer" to the earlier ARP request appear - the IP address of the machine having the Ethermet address whose corresponding IP address is being queried? 5. What are the hexadecimal values for the source and destination addresses in the Ethemet frame containing the ARP reply message? 6. But there is yet another computer on this network, as indicated by packet 6 - another ARP request. Why is there no ARP reply (sent in response to the ARP request in packet in the packet trace? Ethernet Answer the following questions, based on the contents of the Ethernet frame containing the HTTP GET message using the Wireshark file "ethernet-ethereal-trace-l": 1. What is the 48-bit Ethernet address of your computer? 2. What is the 48-bit destination address in the Ethernet frame? Is this the Ethernet address of gaia.cs.umass.cedu? (Hint: the answer is no). What device has this as its Ethernet address? [Note: this is an important question, and one that students sometimes get wrong. Re-read pages 468-469 in the text and make sure you understand the answer here.] 3. Give the hexadecimal value for the two-byte Frame type field. What upper layer protocol does this correspond to? 4. How many bytes from the very start of the Ethernet frame does the ASCII "G" in "GET" appear in the Ethernet frame? Next, answer the following questions, based on the contents of the Ethermet frame containing the first byte of the HTTP response message. 5. What is the value of the Ethernet source address? Is this the address of your computer, or of gaia.cs.umass.edu (Hint: the answer is no). What device has this as its Ethernet address? 6. What is the destination address in the Ethemet frame? Is this the Ethernet address of your computer? 7. Give the hexadecimal value for the two-byte Frame type field. What upper layer protocol does this correspond to? 8. How many bytes from the very start of the Ethernet frame does the ASCII "O" in "OK" (i.e., the HTTP response code) appear in the Ethernet frame? Subnetting I As a Network Administrator you have a Private Class C Network with default subnet mask and you want to form 4 subnets with: A: 82 hosts, B: 31 hosts, C: 29 Hosts, D: 12 Hosts. Answer the following questions for each subnet: Network address: Subnet mask: IP address range: Broadcast address: Possible Subnets: 2 Repeat exercise I with same Private Class C network with different variation.
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