How many corresponding bytes are highlighted in the packet content window? From

Question

How many corresponding bytes are highlighted in the packet content window?

From which byte# (in decimal) of the frame does it start?

What is the content (in hexadecimal) of the last four bytes of this chunk?

Frame 22: 581 bytes on wire (4648 bits), 581 bytes captured (4648 bits) > Ethernet II, Src: Del1_a8:2c:64 (d4:be:d9:a0:2c:64), Dst: Netscreen_ff:10:02 (00:10:db:ff:10:02) > Internet Protocol Version 4, Src: 130.245.23.110, Dst: 128.119.245.12 Transmission Control Protocol, Src Port : 62179, Dst Port : 88, Seq: 1, Ack: 1, Len: 527 Source Port: 62179 Destination Port: 80 [Stream index: 1] [TCP Segment Len: 527] Sequence number:1 (relative sequence number) [Next sequence number: 528 (relative sequence number)] Acknowledgment number: 1(relative ack number) Header Length: 20 bytes 001 2 37 6c b1 00 00 80 06 82 f5 17 6e 80 77 .71. 0020 f5 ec 0040 68 61 72 6b 2d 6c 61 62 73 2f 49 4e 54 52 4f 2d hark-lab s/INTRO- 0050 77 69 72 65 73 68 61 72 6b 2d 66 69 6c 65 31 2e wireshar k-file1. ee68 68 74 6d 6c 2e 48 54 54 5e 2f 31 2e 31 ed ea 48 html HTT P/1.1..H 0070 6f 73 74 3a 20 67 61 69 61 2e 63 73 2e 75 6d 61 ost: gai a.cs.uma 0080 73 73 2e 65 64 75 Od 0a 43 6f 6e 6e 65 63 74 69 ss.edu.. Connecti 083 68 12 20 0090 6f 6e 3a 20 6b 65 65 70 2d 61 6c 69 76 65 ed ea on: keep -alive.. 00a0 43 61 63 68 65 2d 43 6f 6e 74 72 6f 6c 3a 20 6d Cache-Co ntrol: m be 61 78 2d 61 67 65 3d 30 ed 0a 55 70 67 72 61 64 ax-age-e ..Upgrad *K. .MP f2 e3 00 50 d1 fc a4 2a 4b f7 bd 4d 50 18 47 45 54 20 2f 77 69 72 65 73 01 00 12 11 00 00 E T /wires

Explanation / Answer

20 bytes are highlighted in Packet Content Window, starting from 0022 to 0035.

It starts from 242.

Content of last 4 bytes is : 12 11 00 00

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