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1、思科防火墙技术汇总（CISCOfirewalltechnologysummary）AtotaloffourtypesofCISCOfirewalltechnologysummary200705Monday14October09:51P.M.weknowthattherearefourtypes:firewallfirewallintegratedrouter,firewallintegratedproxyserver,hardwareandsoftwarefirewallspecialandspecialcombinationoffirewall.Ciscofirewallsolutionco
2、ntainsthefirstandfourthtypesoffourtypes,namely:firewallintegratedrouteranddedicatedsoftwareandhardwarefirewall.Firewalltechnologyintegratedinrouter1、ACLtechnologyinrouterIOSstandardequipmentACLAccessControlList(accesscontrollist),AccessList(accesslist),itisthebasisfortheIOSFirewallFeatureSet,IOSoper
3、atingsystemisCiscolineinterfacerouterunified(InternetOperationSystem,networkoperatingsystem)partofthestandardconfiguration.Thismeansthatafterbuyingarouter,theACLfunctionisalreadyavailable,andnoextramoneyisneeded.2,IOSFirewallFeatureSet(IOSfirewallpackage)IOSFirewallFeatureSetACLisonthebasisoffurther
4、improvementofsafetycontrol,thenamesuggests,itisasetofspecializedsoftwarefortheadditionalfirewallfunctionpackage,canbeobtainedthroughtheIOSupgrade,andcanbeloadedintoapluralityofCiscorouterplatform.Atpresent,thefirewallsoftwarepackageapplicablerouterplatformincludesCisco1600,1700,2500,2600and3600,belo
5、ngtothemiddleandlowendseries.Formanysmallandmediumenterpriseuserswhotendtousethe"all-in-onesolution"(integratedsolution)andstrivetosimplifymanagement,itcanmeetthedemandtoalargeextent.Thereasonwhywedonotimplementtheintegratedfirewallfunctiononhigh-enddevicesistoavoidthecoreworkofbackboneroutersthataf
6、fectlargenetworks-dataforwarding.Insuchanetwork,adedicatedfirewalldeviceshouldbeused.FeaturesofCiscoIOSfirewall:Lcontextbasedaccesscontrol(CBAC)providesapplicationbasedsecurityscreeningforadvancedapplicationsandsupportsthelatestprotocolsLJavapreventssmallappsthathavelittlemotivationtodownloadLaddsde
7、nialofservicedetectionandpreventionfunctionsonthebasisofexistingfunctionality,thusincreasingprotectionAfterdetectingsuspiciousbehavior,thelcansendalertsandsystemrecorderrormessagestothecentralmanageme
