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If you can decode the TCP options, Ill give you 5 points of extra credit toward your final grade. If you can identify what the

If you can decode the TCP options, Ill give you 5 points of extra credit toward your final grade. If you can identify what the specific TCP anomaly is, I will give you another 5 points of extra credit toward your final grade. Both of these are extra credit for a reason (decoding it is challenging). Here are two more packets shown in a more traditional tcpdump output. Ignore the 0xs as they just tell you it is raw hex. On the right is an attempt at ASCII translation which is also of little value here. If youve been able to solve the above translation this should be easy as many of the values/attributes are the same. The main difference is the destination TCP port number.

0x45 0x00 0x00 0x30 0x43 0x91 0x00 0x00 0x71 0x06 0xcd 0x30 0xd5 0x96 0x5b 0xa6 0xc0 0xa8 0x01 0x01 0x91 0x34 0x17 0x0c 0x37 0xca 0xbd 0x60 0x79 0xfe 0xf3 0xfc 0x70 0x02 0xff 0xff 0x3e 0xb2 0x00 0x00 0x02 0x04 0x05 0xb4 0x01 0x01 0x04 0x02

1. IP Version = 2. Internet Header Length = 3. TOS = 4. Total Length = 5. IP ID (hex value): 6. X (one bit 0/1) = 7. D (one bit 0/1) = 8. M (one bit 0/1) = 9. Offset = 10. TTL = 11. Upper layer protocol = 12. Checksum (in hex) = 13. Source address (in dotted decimal format) = 14. Destination Address (in dotted decimal format) = 15. Source Port = 16. Destination Port = 17. Sequence Number (in hex) = 18. Acknowledgment number (in hex) = 19. Header Length = 20. R = 21. Flags = 22. TCP Window Size (in hex or decimal) = 23. TCP Header and Segment Checksum (in hex or decimal) = 24. Urgent Pointer Value =

0x45 0x00 0x00 0x2c 0x9f 0x15 0x00 0x00 0x73 0x06 0x58 0x20 0xad 0xa1 0x9b 0x39 0xc0 0xa8 0x01 0x01 0x7d 0x08 0x01 0xbb 0xf4 0xfb 0x96 0xc5 0x13 0x12 0x9d 0x31 0x60 0x10 0x0f 0xa0 0x7d 0x19 0x00 0x00 0x02 0x04 0x05 0xb4 0x00 0x00

1. IP Version = 2. Internet Header Length = 3. TOS = 4. Total Length = 5. IP ID (hex value): 6. X (one bit 0/1) = 7. D (one bit 0/1) = 8. M (one bit 0/1) = 9. Offset = 10. TTL = 11. Upper layer protocol = 12. Checksum (in hex) = 13. Source address (in dotted decimal format) = 14. Destination Address (in dotted decimal format) = 15. Source Port = 16. Destination Port = 17. Sequence Number (in hex) = 18. Acknowledgment number (in hex) = 19. Header Length = 20. R = 21. Flags = 22. TCP Window Size (in hex or decimal) = 23. TCP Header and Segment Checksum (in hex) = 24. Urgent Pointer Value =

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