1. TCP Protocol Analysis
Access UMKC Home Page

2. 4/25/2019
UMKC Home Page
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cs423-cotter

3. Ethereal Filter
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4. TCP (First syn)
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5. TCP (Second syn + ack)
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6. TCP (Second ack)
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7. TCP (First packet – HTTP request)
4/25/2019
TCP (First packet – HTTP request)
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cs423-cotter

8. TCP (ack for first data packet)
4/25/2019
TCP (ack for first data packet)
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cs423-cotter

9. 4/25/2019
UMKC Home Page (2008)
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cs423-cotter

10. TCP – IP info (First syn)
4/25/2019
TCP – IP info (First syn)
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11. 4/25/2019
TCP (First syn)
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cs423-cotter

12. 4/25/2019
TCP (Second syn + ack)
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cs423-cotter

13. 4/25/2019
TCP (Second ack)
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cs423-cotter

14. TCP (First packet – HTTP request)
4/25/2019
TCP (First packet – HTTP request)
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cs423-cotter

15. ACK + TCP segment data
4/25/2019
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cs423-cotter

16. 4/25/2019
Reassembled Packet
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17. 4/25/2019
UMKC Home Page (1/2012)
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18. UMKC Home Page (9/2012)
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19. 4/25/2019
Summary
TCP is a complex protocol, but tools are available to analyze it.
Client / Server Programs are widely used.
Analysis of the protocols (at all layers) can lead to a greater understanding of how the applications work.
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cs423-cotter