計算機網(wǎng)絡(luò)實驗報告-實驗五探索tcp協(xié)議-展示頁
2025-06-14 00:54本頁面
【正文】 ur client puter(source) to transfer the file to ? ip address: port number － 5－ 答： My client puter: IP address: ip address: Tcp port number Then Wireshark do this, select AnalyzeEnabled Protocols. Then uncheck the HTTP box andselect OK. now see an Wireshark window that looks like: － 6－ 3. TCP Basics Answer the following questions ； 4. What is the sequence number of the TCP SYN segment that is used to initiate the TCP connection between the client puter and ? What is it in the segment that identifies the segment as a SYN segment? 答： sequence number:0 ； syn 被設(shè)置為 1 說明是 syn 段。 － 1－ 陜西師范大學(xué) 計算機網(wǎng)絡(luò) 實驗報告 實驗 五 探索 TCP 協(xié)議 一、實驗?zāi)康? wireshark的操作。 TCP是如何進(jìn)行數(shù)據(jù)傳輸?shù)?，及其如何實現(xiàn)擁塞控制、流量控制等 二、實驗器材 。 Sequence number Syn is 1 － 7－ 5. What is the sequence number of the SYNACK segment sent by to the client puter in reply to the SYN? What is the value of the ACKnowledgement field in the SYNACK segment? How did determine that value? What is it in the segment that identifies the segment as a SYNACK segment? 答： The sequence number of the SYNACK segment sent by is:0； SYNACK segment 中 ACKnowledgement 的值為 1； ACKnowledgement number 的值為 SYN 消息中 sequence number 加上 1 所得； SYN 和 Acknowledgement f 都置為 1 說明這是一個 SYNACK segment. 6. What is the sequence number of the TCP segment containing the HTTP POST mand? Note that in order to find the POST mand, you’ll need to dig into the packet content field at the bottom of the Wireshark window, looking for a segment with a “POST” within its DATA field. Sequence number The value of the ACKnowledgement field － 8－ 答： 第四號報文段是包含 HTTP POST 命令的 TCP 1. Sequence number Post mand segment － 9－ 7. Consider the TCP segment containing the HTTP POST as the first segment in the TCP connection. What are the sequence numbers of the first six segments in theTCP connection (including the segment containing the HTTP POST)?At what time was each segment sent? When was the ACK for each segment received?Given the difference between when each TCP segment was sent, and when itsacknowledgement was received, what is the RTT value for each of the sixsegments? What is the EstimatedRTT value (see page 249 in text) after thereceipt of each ACK? Assume that the value of the EstimatedRTT is equal tothe measured RTT for the first segment, and then is puted using theEstimatedRTT equation on
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