sessiontothesameWANconnectionandtranslateIPaddressintheSIPpackets
correctlyinNATmode.Suchpassthroughsupportisalwaysenabledandtherearetwo
modesforselection:StandardModeandCompatibilityMode.
IfyourSIPserver’ssignalportnumberisnonstandard,youcanchecktheboxDefine
customsignalportsandinputtheportnumberstothetextboxes.
Withthisoptionenabled,protocolsthatprovideaudiovisualcommunicationsessionswill
bedefinedonanypacketnetworkandpassthroughtheBalance.
FTPsessionsconsistoftwoTCPconnections;oneforcontrolandonefordata.Ina
multiWANsituation,theymustberoutedtothesameWANconnection.Otherwise,
problemswillariseintransferringfiles.Bydefault,thePeplinkBalancemonitorsTCP
controlconnectionsonport21foranyFTPconnectionsandbindsTCPconnectionsof
thesameFTPsessiontothesameWAN.
IfyouhaveanFTPserverlisteningonaportnumberotherthan21,youcancheck
Definecustomcontrolportsandentertheportnumbersinthetextboxes.
ThePeplinkBalancemonitorsoutgoingTFTPconnectionsandroutesanyincoming
TFTPdatapacketsbacktotheclient.SelectEnableifyouwanttoenableTFTP
passthroughsupport.
ThisfieldisforenablingthesupportofIPsecNATTpassthrough.UDPports500,4500,
and10000aremonitoredbydefault.
YoumayaddmorecustomdataportsthatyourIPsecsystemusesbycheckingDefine
customports.IftheVPNcontainsIPsecsitetositeVPNtraffic,checkRouteIPsec
SitetoSiteVPNandchoosetheWANconnectiontoroutethetrafficto.
14.2.5 GroupedNetworks
Using“GroupedNetworks”youcangroupandnamearangeofIPaddresses,whichcanthenbeusedto
definefirewallrulesoroutboundpolicies.
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