tailieunhanh - Solution to Wireshark Lab

1. What is the 48-bit Ethernet address of your computer? The Ethernet address of my computer is 00:09:5b:61:8e:6d 2. What is the 48-bit destination address in the Ethernet frame? Is this the Ethernet address of (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.] | Solution to Wireshark Lab Ethernet and ARP Fig. 1 GET request Ethernet information 1. What is the 48-bit Ethernet address of your computer The Ethernet address of my computer is 00 09 5b 61 8e 6d 2. What is the 48-bit destination address in the Ethernet frame Is this the Ethernet address of 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. The destination address 00 0c 41 45 90 a8 is not the Ethernet address of . It is the address of my Linksys router which is the link used to get off the subnet. 3. Give the hexadecimal value for the two-byte Frame type field. What do the bit s whose value is 1 mean within the flag field The hex value for the Frame type field is 0x0800. 4. How many bytes from the very start of the Ethernet frame does the ASCII G in GET appear in the Ethernet frame The ASCII G appears 52 bytes from the start of the ethernet frame. There are 14 B Ethernet frame and then 20 bytes of IP header followed by 20 bytes of TCP header before the HTTP data is encountered. 5. What is the hexadecimal value of the CRC field in this Ethernet frame The hex value for the CRC field is 0x 0d0a 0d0a. Fig. 2 OK response Ethernet information 6. What is the value of the Ethernet source address Is this the address of your computer or of Hint the answer is no . What device has this as its Ethernet address The source address 00 0c 41 45 90 a8 is neither the Ethernet address of nor the address of my computer. It is the address of my Linksys router which is the link used to get onto my subnet. 7. What is the destination address in the Ethernet frame Is this the Ethernet address of your computer The destination address 00 09 5b 61 8e 6d is the address of computer. 8. Give the hexadecimal value for the two-byte Frame type field. What .

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