tcp數(shù)據(jù)包分析

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1、計(jì)算機(jī)科學(xué)與技術(shù)學(xué)院實(shí)驗(yàn)報(bào)告（電子版）課程:TCP/IP協(xié)議分析實(shí)驗(yàn)名稱TCP指導(dǎo)老師姓名學(xué)號(hào)班級(jí)實(shí)驗(yàn)地點(diǎn)實(shí)驗(yàn)日期成績(jī)一、實(shí)驗(yàn)內(nèi)容：1.TCP協(xié)議中的三次握手、數(shù)據(jù)傳送和四次揮手二、實(shí)驗(yàn)?zāi)康模鹤トCP數(shù)據(jù)包進(jìn)行分析三、涉及實(shí)驗(yàn)的相關(guān)情況介紹（包含使用軟件或?qū)嶒?yàn)設(shè)備等情況人Windows系統(tǒng)。四、程序清單與測(cè)試數(shù)據(jù):120^60個(gè)廠門⑴報(bào)文段161.TCP報(bào)文格式:A4ia地緒16位口的WH1堆站I6fiz序號(hào)32位II

2、認(rèn)是有效的PSH請(qǐng)求推送RST鏈接復(fù)位SYN同步序號(hào)FIN終止連接TCP三次握手容戶站服務(wù)端客戶端發(fā)送sxo報(bào)文?并置發(fā)送序號(hào)為XSYN=1Seq=XSYN=1ACK=X>1Seq=Y服務(wù)端發(fā)送syn+ackIR文■并置發(fā)送IT號(hào)為Y,在確認(rèn)序號(hào)為X+1客戶端發(fā)送ack報(bào)文,并置發(fā)送序號(hào)為乙在確認(rèn)序號(hào)為Y+1抓取數(shù)據(jù)包:■359512.286153192.168.33.24192.168.8.32TCP■359612.286693192.168.8.32192.168.33.24TCP■359712.286729192.168.33?24192.168.8.32TCP圖1-2三次握手三

3、次握手?jǐn)?shù)據(jù)第一次握手：建立連接時(shí)，客戶端192.168.33.24發(fā)送SYN包（SYN二1）到服務(wù)器192.168.8.32,等待服務(wù)器確認(rèn)。00a915005aOf08clf920dbf20496a48Odo0821oaoO50014C8O0800O1oO810302006803caoO5001dcoocb3432bb56c5af6o第一次握手十六進(jìn)制數(shù)據(jù)包000000001010010100000000111101100000100001101100001000000000010100000100000丄丄0丄000111100001101000010101100100000101

4、10011000000001011010000000010丄0丄0丄00丄11010101010110101100000011000001000000001101101100000001000丄0丄0丄110001100000111110101000111110010000000011110010000000110丄00丄丄丄丄00001000010000000010000100000000000000000000000000000011丄丄丄丄丄00丄00000000000000000001100000010101000000000000000000000000丄000丄丄00010

5、00101100000001100000010011001100000000000001000000001丄000丄00丄00000000000001101010100011011010000000100000010000000001第一次握手二進(jìn)制數(shù)據(jù)包Clf9(49657):源端口地址。99da6cb3:序號(hào)(32位)。8002：SYN=10015(21):目的端口地址00000000：確認(rèn)號(hào)(32位)URGACKPSIIRSTSYNFIN0000102000：窗口尺寸dbf2:校驗(yàn)和0000:緊急指針第二次握手:服務(wù)器192.168.8.32收到SYN包，必須確認(rèn)客戶192.16

6、8.33.24的SYN(ACK二SYN+1),同時(shí)自己也發(fā)送一個(gè)SYN包(SYN二k),即SYM+ACK包.0821031050014C8O0040O2bO88C3006098-d3fadof0914c9o5444ldlb91b5-d14oa6b4Iodoof5207406090cofo5010dococ75236If5foa-d7o29480283100co1o480240第二次握手十六進(jìn)制數(shù)據(jù)包10001100101010010000000000010001001000010100101101000000000001010000010010001001000101010011010

7、01101010000011000000101000000000010110100000000101010010101001111011111111100000000000000100110010010101000000001001111001111100101100111101010000001010111011010111100100000001111010101000010000000000000001000110000010110110