User's Guide

Chapter4SystemCongurations
Table4-6H.323NATCongurationDescriptions
ParameterDescription
WorkModeWhethertoenableH.323NAT ,includingDisabled,StaticNATandH.460.
IfDisabledisselected,thereisnoneedtosetotherparameters.
StaticNATmeansthataprivateIPaddressinsidetheIntranetis
translatedintothecorrespondingpublicIPaddress.
H.460isagroupofrewalltraversalprotocols.Usingthisprotocoltogether
withanexternalgateway,theterminalcanexiblytraverserewalls.
PublicNATIfNATModeissettoStaticNAT,thissettingisrequired.
EnterapublicIPaddress.
IP1-3
SubnetMask
1-3
IfNATModeissettoStaticNAT,thissettingisrequired.
LocalintranetprivateIPaddressandcorrespondingsubnetmask.
ThenetworksegmentdeterminedbytheIPaddressandcorresponding
subnetmaskistheprivatenetworksegmentofthelocalterminal.TheNAT
functionisnotusedwhentheterminalsinthisnetworksegmentarecalled.
KeepAlive
Intervel
IfNATModeissettoH.460,thissettingisrequired.
Settheintervalforthesendingkeep-alivepackettotheH.460server,
rangingfrom5to30seconds.Youareadvisedtoretainthedefaultsetting
(5s).
lSelectSIPWorkPattern.Foradescriptionoftheparameters,refertoT able4-7.
Table4-7SIPNATCongurationDescriptions
ParameterDescription
WorkModeEnableordisabletheNATfunctionoftheSIP .Options:Disable,Static
NAT,andICE.IfDisableisselected,youdonotneedtocongure
otherparameters.
StaticNAT:EveryprivateIPaddressofaninternalnetworkis
convertedtoapublicIPaddress.ItmeansthataprivateIPaddressis
convertedtoonlyapublicIPaddress.
ICE:Testswhethertwocommunicationpartiescanbeconnected
throughTraversalUsingRelaysaroundNAT(TURN)orSession
TraversalUtilitiesforNAT(STUN)anddeterminesabettermode.
PublicNATThisparameterissetonlywhenWorkModeissettoStaticNAT.
Enterapublicnetworkaddress.
Compatibility
Mode
ThisparameterissetonlywhenWorkModeissettoICE.
Options:RFC5245andWLM2009.
NormallyRFC5245isselected.WLM2009isselectedwhenthe
terminalinterconnectswithaMicrosoftLYNCterminal.
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