实验报告模板-2012春季版

PAGE·PAGE1· 管理学院实验报告学号姓名专业班级指导老师实验日期课程名称实验名称实验成绩实验报告具体内容一般应包括：一、实验目的和要求;二、主要仪器设备(软件); 三、实验内容及实验数据记录;四、实验体会1.实验目的和要求1）熟练掌握常见网络应用程序的使用方法；2）掌握数据包的捕获及分析方法；3）能通过查看公共网络协议数据包的内容来印证协议的具体工作流程。2.实验原理以教材所附的操作流程和教师在实验课中的演示为引导，使用常规的基于公共协议的网络应用，捕获其相关的数据包，分析数据包的格式与内容，与协议的原理及规定相印证。3.主要仪器设备（软件）1）硬件配置：使用综合实验室中现有配置的计算机，无特殊要求。2）软件环境：WindowsXP或以上的操作系统，数据包捕获和分析工具WireShark。4.实验内容及步骤1.FollowtheinstructionsonWireshark_HTTP_July_22_2007.pdf,answerthefollowingquestions:A.TheBasicHTTPGET/responseinteraction1)IsyourbrowserrunningHTTPversion1.0or1.1?WhatversionofHTTPistheserverrunning?2)Whatlanguages(ifany)doesyourbrowserindicatethatitcanaccepttotheserver?3)WhatistheIPaddressofyourcomputer?Oftheserver?4)Whatisthestatuscodereturnedfromtheservertoyourbrowser?5)WhenwastheHTMLfilethatyouareretrievinglastmodifiedattheserver?6)Howmanybytesofcontentarebeingreturnedtoyourbrowser?7)Byinspectingtherawdatainthepacketcontentwindow,doyouseeanyheaderswithinthedatathatarenotdisplayedinthepacket-listingwindow?Ifso,nameone.B.TheHTTPCONDITIONALGET/responseinteraction8)InspectthecontentsofthefirstHTTPGETrequestfromyourbrowsertotheserver.Doyouseean“IF-MODIFIED-SINCE”lineintheHTTPGET?9)Inspectthecontentsoftheserverresponse.Didtheserverexplicitlyreturnthecontentsofthefile?Howcanyoutell?10)NowinspectthecontentsofthesecondHTTPGETrequestfromyourbrowsertotheserver.Doyouseean“IF-MODIFIED-SINCE:”lineintheHTTPGET?Ifso,whatinformationfollowsthe“IF-MODIFIED-SINCE:”header?11)WhatistheHTTPstatuscodeandphrasereturnedfromtheserverinresponsetothissecondHTTPGET?Didtheserverexplicitlyreturnthecontentsofthefile?2.FollowtheinstructionsonWireshark_TCP_July_22_2007.pdf,answerthefollowingquestions:1)WhatistheIPaddressandTCPportnumberusedbytheclientcomputer(source)thatistransferringthefileto?2)WhatistheIPaddressof?OnwhatportnumberisitsendingandreceivingTCPsegmentsforthisconnection?Answertheabovetwoquestionsbylookingintofiletcpethereal-trace-1in/wireshark-labs/wireshark-traces.zip.4)WhatisthesequencenumberoftheTCPSYNsegmentthatisusedtoinitiatetheTCPconnectionbetweentheclientcomputerand?WhatisitinthesegmentthatidentifiesthesegmentasaSYNsegment?5)WhatisthesequencenumberoftheSYNACKsegmentsentbytotheclientcomputerinreplytotheSYN?WhatisthevalueoftheACKnowledgementfieldintheSYNACKsegment?Howdiddeterminethatvalue?WhatisitinthesegmentthatidentifiesthesegmentasaSYNACKsegment?6)WhatisthesequencenumberoftheTCPsegmentcontainingtheHTTPPOSTcommand?7)ConsidertheTCPsegmentcontainingtheHTTPPOSTasthefirstsegmentintheTCPconnection.WhatarethesequencenumbersofthefirstsixsegmentsintheTCPconnection(includingthesegmentcontainingtheHTTPPOST)?Atwhattimewaseachsegmentsent?WhenwastheACKforeachsegmentreceived?GiventhedifferencebetweenwheneachTCPsegmentwassent,andwhenitsacknowledgementwasreceived,whatistheRTTvalueforeachofthesixsegments?3.FollowtheinstructionsonWireshark_IP_July_22_2007.pdf,answerthefollowingquestions:1)WhatistheIPaddressofyourcomputer?2)WithintheIPpacketheader,whatisthevalueintheupperlayerprotocolfield?3)HowmanybytesareintheIPheader?HowmanybytesareinthepayloadoftheIPdatagram?Explainhowyoudeterminedthenumberofpayloadbytes.4)HasthisIPdatagrambeenfragmented?5)WhichfieldsintheIPdatagramalwayschangefromonedatagramtothenextwithinthisseriesofICMPmessagessentbyyourcomputer?6)Whichfieldsstayconstant?Whichofthefieldsmuststayconstant?Whichfieldsmustchange?7)FindthefirstICMPEchoRequestmessagethatwassentbyyourcomputerafteryouchangedthePacketSizeinpingplottertobe2000.HasthatmessagebeenfragmentedacrossmorethanoneIPdatagram?9)FindoutthefirstfragmentofthefragmentedIPdatagram.WhatinformationintheIPheaderindicatesthatthedatagrambeenfragmented?WhatinformationintheIPheaderindicateswhetherthisisthefirstfragmentversusalatterfragment?HowlongisthisIPdatagram?10)PrintoutthesecondfragmentofthefragmentedIPdatagram.WhatinformationintheIPheaderindicatesthatthisisnotthefirstdatagramfragment?Arethemorefragments?11)WhatfieldschangeintheIPheaderbetweenthefirstandsecondfragment?4.FollowtheinstructionsonWireshark_Ethernet_ARP_July_22_2007.pdf,answerthefollowingquestions:1)Whatisthe48-bitEthernetaddressofyourcomputer?2)Whatisthe48-bitdestinationaddressintheEthernetframe?IsthistheEthernetaddressof?WhatdevicehasthisasitsEthernetaddress?3)Givethehexadecimalvalueforthetwo-byteFrametypefield.4)HowmanybytesfromtheverystartoftheEthernetframedoestheASCII“G”in“GET”appearintheEthernetframe?5)*WhatisthehexadecimalvalueoftheCRCfieldinthisEthernetframe?Answerthefollowingquestions,basedonthecontentsoftheEthernetframecontainingthefirstbyteoftheHTTPresponsemessage.6)WhatisthevalueoftheEthernetsourceaddress?Isthistheaddressofyourcomputer,orof.WhatdevicehasthisasitsEthernetaddress?7)WhatisthedestinationaddressintheEthernetframe?IsthistheE