实验利用wireshark对IP协议分析

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1、实验皿协议分析一、实验目的理解IP协议报文类型和格式，掌握IPV4地址的编址方法。1、使用DHCP获取IP地址（1）打开命令窗口，启动Wiresharko（2）输入“ipconfig/release”。这条命令会释放主机冃前的IP地址，此时，主机IP地址会变为0.0.0.0（3）然后输入“ipconfig/renew"命令。这条命令让主机获得一个网络配置，包括新的IP地址。（4）等待，玄到“ipconfig/renew”终止。然后再次输入“ipconfig/renew”命令。（5）当第二个命令“

2、ipconfig/renew"终止时，输入命令"ipconfig/release”释放原來的己经分配的IP地址C：DocumentsandSettingsAdministrator>ipconfig/releaseUindowsIPConfigurationEthernetadapter本地连接：Connection-specificDNSSuffix.:IPAddress:0.0.0.0SubnetMask:0.0.0.0DefaultGateway:C：DocumentsandSett

3、ingsAdministrator>ipconfig/renewUindowsIPConfigurationEthernetadapter本地连接：Connection-specificDNSSuffix.:IPAddress:192・168・1・100SubnetMask:255.255.255.0DefaultGateway:192.168.1.1C:DocunentsandSettingsrtdninistrator>ipcon£igZreleaseWindowsIPConfigur

4、ationEthernetadapter本地连接：Connection-specificDNSStiffix■IPAddress0.0.0.0SubnetMask0.0.0.0DefaultGateway2621.34909S0.0.0.0255.255.255.255BroadcastDHCPAAP348DHCPDiscover・60咒hohas192.168192.168.1.100DHCP590DHCPOffer-255.255.255.255DHCP373DHCPRequest・192.

5、168.1.100DHCP590DHCPACK・BroadcastARP42GratuitousarpBroadcastARP42GratuitousarpTransactionID0xc2bc0a40Transactionxo0xc2bc0a40.1.100?Tell192.168.1.1TransactionID0xc2bc0a402320.8616880.0.0.02420.862256Tp-LinkT.37:09:6621.348674192.168.1.1Transactlon^^0x

6、c2bc0a40for192.168.1.100(Request)for192.168.1.100(Request)±France26:373bytesonwire(2984bits),373bytescaptured(2984bits)±EthernetII9Src:Giga-Byt.7S:2e:86(90:2b:34:75:2e:86),Dst:Broadcast(ff:ff:ff:ff:ff:ff)internetProtocolversion4Vsrc:0.0.0.0(0.0.0.0),

7、Dst:255・255・255・255(255.255.255.255)version:4Headerlength:20bytesaDifferentiatedservicesField:0x00(DSCP0x00:Default;ECN：0x00:Not-ECT(NotECN-capableTransport))TotalLength:359Identlfication:0x0eb3(3763)aPlags:0x000■Reservedbit:Notset•0■Don*tfragment:No

8、tset..0■Morefragments:NotsetFragmentoffset:0Timetolive:64Protocol:UDP(17)二Headerchecksum:0x6ad4[correct](Good:True][Bad:False]Source:0.0.0.0(0.0.0.0)Destination:255.255.255.255(255.255.255.255)uuserDatagramprotocol,srcPort:bootpc(68),DstPort:bootps(6