pppoe抓包解析

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1、PPPOE抓包解析Pppoe建立过程分为发现阶段和会话阶段。一.发现阶段1.用户主机以广播的方式发送PADI数据包，请求建立链路连接。(初始化阶段)。Code为0x09,session为0x0000.S.37M9919.2W,1S>,1772)9.255.255.2SeSSOP17$HSeARCM-MlIP/1.1J27S.46897JLlt«onH.42:S2:PX-X><)XXYW-Of(AS.02.»W<.NUeL.X0*26:40byt^co

2、nwir^(WOblt<)940c^ptur^dbit«：Bro»4<«

3、d)Addrr^viUteonTe>?:S2:dd(29:1S:d8:42:S?:dd)0•LGbit:Globallyuni<>ueaddress(factorydefault)••••••.0•IGbit:IMlviduAl>ddr«t(unicast)Type:PFPoF01$covcry(0xSS63)*PPP-ov«r.ethCW«ry0©O1....-Version:1.…0W1•Type:1Code:ActiveOixoveryInitiation(PA01)(0x99)SessionXD:0x0000P4y

4、lo»dLength:?0•PFFotTq>Host-Unlq:0*00000的XXXXXKH泊0M00ffffffffffff»16d84252ddM6311WBR..C..eeee9014eieieeeeei99eeeeeed0M0ed01390O00d2.访问集屮器（AC）以单播的方式发送一个PAD◦数裾包对主机的请求作出应答。目的地址为主机的MAC地址，code域为0X07,会话ID域为0x0000。AC-name等信息。vw«*•T…OattiBtiimFr«t«eUUh

5、?SS.25S.?$0SSOP17SRSfARCH•HTTP/1.127S.46€971Llt«onT«.42:S2:ddWoBO71ActiveOltcovtryOffer(PAOO)MH41PX»CXX^WASW.的Mi.Ne4MXS(2flS.469017Llt*onT>4》：Q:ddWofOddActiveOitcov^ry(PAOft)•Fcmm27:78byteionwftr«(624bits),78c«ptur>d(624bltft)onlnt»rf«c«0jIIf$r<:Hu>w»iT»(>4:d<:bA：»f：09:,

6、00:16:dS:4?:S?:dd)*Orvtln^tlon:UteonTe.42:S2:dd(20:16:d8:4?:S2:(M)Addr«$$：Llt«onT«>2：S2：dd(2e：16：d8:42：S2：dd)0-LGbit;Globallyuolqutaddress(factorydefiult)d•T6bit:Individualaddress(unlc>5t)*Mouret:(a4:d<:b«:«f:«9:«0)Address：:»9:a0(>4:dc:b«:«f：«9:a0)0

7、-L6bit:GloballyuAlqu^jddr^«(Victorydefault)••••...0•IGbit:IndivldMiladdress(unicast)Type:WotDiscovery(0XW63)«PPP-cvwr-CthtnwtDiscoverydddl....•Version:t....eeei-ryp•:iCod•:ActiveDiscoveryOffer(PAOO>(0x07)U«ioAio：dxOOMP^ylo^dlength:58-WoeHost-Uniq:oaeooooccooeeecci)00

8、)MlUae:(OPXXHOXXYUBAASd?.IWi.Nf4deX82016d842S2dd>4dcbe«fa0836)1107..BRc..ieeeeee^eieieeeeeie)eoeco«eeoe