Operation Manual

20
Limits the type of packets allowed to pass between the Internet and LAN.
WhenpacketsreachtheAirStation,therewallevaluatesthepackets,and
forwards packets that don’t match any lter to their destination. The Firewall
blocksunnecessarypacketsfromtheInternetsideandpreventsleaking
secure information from the LAN side.
Prohibit NBT and Microsoft-DS routing
PreventsunexpectedexternalaccessviaMicrosoftnetworksharing.The
default setting is disabled.
Reject IDENT requests
Whenthisisenabled,theAirStationsendsrejectpacketsifitreceivesan
IDENTrequest.Thedefaultsettingisenabled.Usethislterwhenthecom-
munication speed goes down using a network application like e-mail, ftp or
WEB.IfIDENTrequestsareforwardedtoaLANsideclientbyaddresstransla-
tionsetting(DMZorTCPport:113),thisbasicruleisignored.
Block Ping from Internet
AnanonymousInternetrequestisanattempttopingyourbroadbandgate-
way’s WAN interface. Pinging is a way of checking if a system is running at a
particularIPaddress.Itcanalsobeusedtohuntforcertainkindsofvulner-
abilitiesinthesystem.BlockingWANrequestsmeansnotrespondingtopings
coming from the Internet. This is the default setting.
IP Filter Settings