a. What is the source port for TCP, and what protocol type is using TCP fot tran

Question

a. What is the source port for TCP, and what protocol type is using TCP fot transport?

b. What is the destination port, and what does the port number indicate

c. what is the acknowledgment number that is expected from the desiration by the

d. What is the header length?

7. To examine TCP under IPv6, close Internet Protocol version 4 and expand Internet Protocol Version

8. With IPv6 selected and expanded, has the data under TOP that you previously exam- ined changed? If so, how has it changed? And if not, why has it not changed?

Internet Protocol Version 4, src: 81.131.67.131, Dst: 213.19.160.190 Version 4 0100 0101 Header Length 20 bytes (5) Differentiated Services Field: 0x00 (DscP: cse, ECN: Not-ECT) Total Length: 340 Identification: 0xa887 (43143) Flags: 0x02 (Don't Fragment) Fragment offset e Time to live: 128 Protocol: TCP (6) Header checksum: 0x4644 [validation disabled] [Header checksum status Unverified] Source 81.131.67.131 Destination: 213.19.160.190 Source GeoIP Unknown Unknown Destination GeoIP Transmission Control Protocol, Src Port: 2810, 80, Seq: 1, Ack: 1, Len: 300 Port Source Port: 2810 Destination Port: 80 Stream index 3] [TCP Segment Len: 300 sequence number: 1 relative sequence number Next sequence number: 301 (relative sequence number)] Acknowledgment number: 1 (relative ack number) Header Length: 20 bytes Flags: 0x018 (PSH, ACK) 000. Reserved: Not set Nonce Not set e... congestion window Reduced (CNR): Not set .0.. ECN-Echo: Not set .0. Urgent: Not set ...1 Acknowledgment: Set 1... Push: Set .0. Reset Not set --0. Syn: Not set ...0 Fin Not set [TCP Flags window size value: 8760 [Calculated window size 8760 window size scaling factor -2 no window scaling used)] Checksun: 0x94 ed [unverified] Checksum Status: Unverified]

Explanation / Answer

a. What is the source port for TCP, and what protocol type is using TCP fot transport?

Source port is 1026 and TCP is sequence number protocol for transportation.

b. What is the destination port, and what does the port number indicate

Destination port is 21 to which all the packets destined.

c. what is the acknowledgment number that is expected from the desiration by the

Acknowledgment number is 0.

d. What is the header length?

Header length is 24 bytes.

Thank you.

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