NetworkGenie/Test_Cases/Test_Case3/readme

Hi There,

This folder contains details for Test_Case3.

1. Version = 4
2. IHL = 5, which indicates 20 bytes.
3. Type Of Service (ToS) = 0,
4. Total Length = 40 bytes, which is 28 in hex.
5. Identification = 3,
6. Flags = The flags are set to zero,
7. Fragment Offset = 0 for now,
8. Time To Live (TTL) = 40s, which is 28 in hex.
9. Protocol = 6, which indicates TCP protocol is used.
10. Header Checksum 
11. Source Address = 172.168.5.3, which is aca8 0503 in hex.
12. Destination Address = 172.168.5.4, which is aca8 0504 in hex.
13. Source Port = 5555, which is 15b3 in hex.
14. Destination Port = 6666, which is 1a0a in hex.
15. Sequence Number = 0,
16. Acknowledgement Number = 0,
17. Data Offset = 5, as it indicates the number of bytes after which data starts. The number 5 represents that data starts after 20 bytes. The data offset value is scaled by 4. 
18. RSV = The reserved bits are set to zero for now.
19. Flgas: set according to the packet type.
20. Window Size = 0
21. Checksum = 
22. Urgent Pointer = 0 for now.