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1、TCP/1P實驗報告頭驗4用Wireshark進行IP協(xié)議分析院業(yè)級名號學(xué)專班姓學(xué)計算機學(xué)院網(wǎng)絡(luò)工程1班劉小芳410090401272012.54.1實驗性質(zhì)木實驗為操作分析性實驗。4.2實驗?zāi)康?.掌握Wireshark軟件的基本使用方法。2.掌握基木的網(wǎng)絡(luò)協(xié)議分析方法。3.使用Wireshark抓包工具，分析IP數(shù)據(jù)報的格式。4.加深理解IP協(xié)議的原理及其工作過程。4.3實驗環(huán)境1.硬件環(huán)境：pc機1臺。2.網(wǎng)絡(luò)環(huán)境：PC機接入LAN或Interneto物理地址：00-E0-4C-00-16-78Ip地址：192.168.0.
2、1313.軟i牛壞境：Windows操作系統(tǒng)和Wireshark軟件。4.4實驗學(xué)時1?Capturingpacketsfromanexecutionoftraceroute2.AlookatthecapturedtraceWhatistheIPaddressofyourcomputer?2.WithintheIPpacketheader,whatisthevalueintheupperlayerprotocolfield?3.HowmanybytesareintheIPheader?Howmanybytesareinthepay
3、loadoftheIPdatagram?Explainhowyoudeterminedthenumberofpayloadbytes.4.HasthisIPdatagrambeenfragmented?Explainhowyoudeterminedwhetherornotthedatagramhasbeenfragmented.UsethedownarrowonyourkeyboardtomovethroughtheICMPmessagessentbyyourcomputer.5-WhichfieldsintheIPdatagra
4、malwayschangefromonedatagramtothenextwithinthisseriesofICMPmessagessentbyyourcomputer?6.Whichfieldsstayconstant?Whichofthefieldsmuststayconstant?Whichfieldsmustchange?Why?7.DescribethepatternyouseeinthevaluesintheIdentificationfieldoftheIPDatagramNext(withthepacketsst
5、illsortedbysourceaddress)findtheseriesofICMPTTLexceededrepliessenttoyourcomputerbythenearest(firsthop)router.8.WhatisthevalueintheIdentificationfieldandtheTTLfield?9.DothesevaluesremainunchangedforalloftheICMPTTL-exceededrepliessenttoyourcomputerbythenearest(firsthop)
6、router?Why?FragmentationSortthepacketlistingaccordingtotimeagainbyclickingontheTimecolumn.10?FindthefirstICMPEchoRequestmessagethatwassentbyyourcomputerafteryouchangedthePacketSizeinpin^plottertobe2000?HasthatmessagebeenfragmentedacrossmorethanoneIPdatagram?11.Printou
7、tthefirstfragmentofthefragmentedIPdatagram.WhatinformationintheIPheaderindicatesthatthedatagrambeenfragmented?WhatinformationinHowlongisthisIPdatagram?12.PrintoutthesecondfragmentofthefragmentedIPdatagram?WhatinformationintheIPheaderindicatesthatthisisnotthefirstdatag
8、ramfragment?Arethemorefragments?Howcanyoutell?13.WhatfieldschangeintheIPheaderbetweenthefirstandsecondfragment?Nowfindthefir
