Eicon Networks S92 Manual de usuario descargar pdf (Pagina 69)

YuChakTinMichael‘sGIACGCFWProjectAssignment

Page 69

NetworkObjects:

Beforewesetupanyrule,alltherelevantnetworkobjectsmustbebuiltfirst. The

followingissuesmustbeconsidered:

n TheIDSis“invisible”totheoutsideworld,andisnotneededinthisrulebase.

n NATisneededfortheEcommercewebserver,theEmailserverandtheDNS

server.

n FW1supportsantispoofingbyautomaticallygeneratingrulesthatrejectpackets

withinternalIPaddressesarrivingontheexternalinterface.Forthisfeatureto

work,theInterfacespropertiesmustbeproperlyconfiguredsothatwhatis

consideredtobeinternalisclearlydefined.

WWW

n TheEcommercewebserver

n Theserver’saddressinthenetworkis192.168.8.3.

n Theserver’s“public”addressforoutsideaccessis192.168.7.8.Thismustbe

definedviatheNATtab.ThecorrespondingNATruleswillbeautomatically

generated.

n Internaltothefirewall

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Eicon Networks S92 Manual de usuario Pagina 69