Given the first 60 bytes of a TCP/IP packet captured on an Ethernet network as shown...
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Given the first 60 bytes of a TCP/IP packet captured on an Ethernet network as shown below, decode the packet for the following fields: - Ethernet MAC source and destination addresses (hexadecimal) - IP source and destination addresses (in standard dotted-decimal format) -TCP source and destination port numbers (decimal) - Type of TCP segment (e.g., ACK, PSH, SYN, FIN, etc.) 08 00 30 18 80 3d 01 la c3 b2 89 86 08 00 45 00 02 4b lf f8 40 00 80 06 ca 06 01 08 68 00 50 e0 Sa 79 ff ff 80 d7 00 00 47 45 54 73 73 65 6e 2f 63 68 72 69 73 74 65 6e 2e 68 74 6d 6c 20 48 54 54 50 2f 31 2e 31 Od 0a 48 6f 73 9b bc e9 06 21 bc e9 da 38 Ob ef 53 50 11 20 2f 7e 63 72 69 *Hint: The captured traces do not contain the Preamble or SFD. All LAN addresses are 6 bytes. You may refer to the packet header templates provided in Appendix C Appendix C: MAC, TCP, UDP and IP Header Formats IP Header 0 4-bit version 4-bit header 8-bit type of service length (TOS) 16-bit identification 8-bit time to live (TTL) 15 16 8-bit protocol 3-bit Blags 16-bit total length (in bytes) 13-bit fragment offset 32-bit source IP address data 16-bit header checksum 32-bit destination IP address options (if any) 20 bytes MAC Frame Format 7. OCTETS PREAMBLE TOCTET SFO 2 ORE OCTETS DESTINATION ADDRESS 2016 OCTETS SOURCE ADCRESS 2 OCTETS LENGTH LSB LLC DATA PAD 4 OCTETS FRAME CHECK SEQUENCE OCTETS WITHIN FRAME TRANSMITTED TOP-TO-BOTTOM DO BTS WITHIN 7 FRAME TRANSMITTED LEFT-TO-RIGHT- M60 UDP Header 0 TCP Header 0 16-bit source port number 16-bit UDP length 16-bit source port number 4-bit header length 15 16 reserved (6 bits) 16-bit TCP checksum data (if any) 15 16 32-bit sequence number 32-bit acknowledgment number options (if any) 16-bit destination port number 16-bit UDP checksum data (if any) 16-bit destination port number 16-bit window size 16-bit urgent pointer 31 31 T 8 bytes 20 bytes Given the first 60 bytes of a TCP/IP packet captured on an Ethernet network as shown below, decode the packet for the following fields: - Ethernet MAC source and destination addresses (hexadecimal) - IP source and destination addresses (in standard dotted-decimal format) -TCP source and destination port numbers (decimal) - Type of TCP segment (e.g., ACK, PSH, SYN, FIN, etc.) 08 00 30 18 80 3d 01 la c3 b2 89 86 08 00 45 00 02 4b lf f8 40 00 80 06 ca 06 01 08 68 00 50 e0 Sa 79 ff ff 80 d7 00 00 47 45 54 73 73 65 6e 2f 63 68 72 69 73 74 65 6e 2e 68 74 6d 6c 20 48 54 54 50 2f 31 2e 31 Od 0a 48 6f 73 9b bc e9 06 21 bc e9 da 38 Ob ef 53 50 11 20 2f 7e 63 72 69 *Hint: The captured traces do not contain the Preamble or SFD. All LAN addresses are 6 bytes. You may refer to the packet header templates provided in Appendix C Appendix C: MAC, TCP, UDP and IP Header Formats IP Header 0 4-bit version 4-bit header 8-bit type of service length (TOS) 16-bit identification 8-bit time to live (TTL) 15 16 8-bit protocol 3-bit Blags 16-bit total length (in bytes) 13-bit fragment offset 32-bit source IP address data 16-bit header checksum 32-bit destination IP address options (if any) 20 bytes MAC Frame Format 7. OCTETS PREAMBLE TOCTET SFO 2 ORE OCTETS DESTINATION ADDRESS 2016 OCTETS SOURCE ADCRESS 2 OCTETS LENGTH LSB LLC DATA PAD 4 OCTETS FRAME CHECK SEQUENCE OCTETS WITHIN FRAME TRANSMITTED TOP-TO-BOTTOM DO BTS WITHIN 7 FRAME TRANSMITTED LEFT-TO-RIGHT- M60 UDP Header 0 TCP Header 0 16-bit source port number 16-bit UDP length 16-bit source port number 4-bit header length 15 16 reserved (6 bits) 16-bit TCP checksum data (if any) 15 16 32-bit sequence number 32-bit acknowledgment number options (if any) 16-bit destination port number 16-bit UDP checksum data (if any) 16-bit destination port number 16-bit window size 16-bit urgent pointer 31 31 T 8 bytes 20 bytes
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