Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

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:

 

Appendix C: MAC, TCP, UDP and IP Header Formats IP Header 31 20 bytes 15 16 4-bit 4-bit header 8-bit type of service version

UDP Header 015 16 31 T16-bit destination port number MAC Frame Format 16-bit source port number 8 bytes 16-bit UDP length 1 

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

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Modern Operating Systems

Authors: Andrew S. Tanenbaum, Herbert Bos

4th edition

013359162X, 978-0133591620

More Books

Students also viewed these Electrical Engineering questions

Question

-4 1 9. Let A = Find A-1, (A") and verify that (A")= (A-1)".

Answered: 1 week ago

Question

compare and contrast orientations to the field, and

Answered: 1 week ago

Question

Define science and explain four of its major goals.

Answered: 1 week ago