Linux下網(wǎng)關(guān)流量監(jiān)測(cè)及策略路由系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn).pdf

1、分類號(hào)0DC密級(jí)__單位代碼】Q1!LiFlUX下網(wǎng)關(guān)流量監(jiān)測(cè)及策略路由系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)(中文題名和副題名)指導(dǎo)教師李志淮學(xué)位授予單位申請(qǐng)學(xué)位級(jí)別研究方向劉嬋(研究生姓名)職稱職稱大連海事大學(xué)碩士學(xué)科與專業(yè)計(jì)算機(jī)應(yīng)用技術(shù)計(jì)算機(jī)網(wǎng)絡(luò)應(yīng)用技術(shù)論文提交日期2005年3月學(xué)位授予日期答辯委員會(huì)主席評(píng)閱人AbstractThefastemergenceoftheHi—Techindustrydrivestheprogressofthewholes

2、ocietymadpromotesthespeedydevelopmentofIntemetevenmoreHoweverthenetworkalsoexposesalotofthornyproblemsTheyaresuchobjectivefactorsasnetworkbuildingup，hardwareequipment，ete，andartificialdestructionssuchasvirusproceduresAtp

3、resent，themoreoutstandingproblemsarenetworkmaliciousscanning：networkcongestion，andoverweightinthenetworkenvironmentAgainsttheabove—mentionednetworkproblemsthissubject塒legatewayflowmonitorandtacticsroutesystem，hasoffereda

4、solutionTiffssystemisdividedintotwofunctionmodulesTheyarethegatewaymonitormoduleandthegatewaytacticsroutemoduleTheirbasicfunctionsare：monitoringtheunusualdatastreamandsettingupnetworkrouteaccordingtosometacticsatgateways

5、erverTheworkofthegatewaymonitormoduleistoutilizenetfilterfunctionframeinLinuxoperatingsystem，writethekernelmodule，andmonitorthenetworkdataflowThenwritehashalgorithmtostoreandorganizeusernodesandmessagenodes，sendtheuserin

6、formationwhichappearsunusualsituationfromkemelspacetouserspacethroughthe／procfilesystemTheresultoftheflowmonitorprovidesagistthatsetsuproutetableinthegatewaytacticsroutemoduleThegatewaytacticsroutemoduleestablishestherou

7、tetableaccordingtotheIpsourceaddressandloadbalancingOnthebasisofanalyzingmanykindsofroutelookupalgorithmsandLinuxroutemechanism，selectthehighefficientalgorithmthatsuitsexperimentenvironment，constructthedatastructureandth

8、eroutetableandprogramtheconcreterealizationprocedureUtilizeLinuxnetworkinterfacelowerdatastructure(net_device))andthemonitorresult，scaleloadsituationofthenetworkinterfacethenadjusttheroutetableThegatewayflowmonitorandtac