User guide

AirLink MP595 / MP595W Modem User Guide
66 2130795
Note: NetMotion Wireless, Inc.
develops client-server applica
-
tions that attempt to overcome
the issues caused by NAT
addressing by assigning its own
consistent private IP addresses.
This software offers a potential
solution to NAT issues, but it is
untested by Sierra Wireless, and
Sierra Wireless does not provide
support for it.
Solutions to the NAT problem
Ifyourservi ceproviderisusingNAT,itisbesttoworkwith
theproviderindevisingasolution.Someserviceproviders
offer,onrequest,accountswithpublicIPaddresses.(There
maybeadditionalchargesforthis.)
Anothersolutionistoimplementaframerelayconnection
betweenyournetworkandyourserviceprovider’snetwork.
Theframerelayconnectionbypassestheaddresstranslation,
andisamethodofovercomingNATissuesencouragedby
someserviceproviders.
Retrieve the Unique Mobile
Device ID
InordertoassociateGPSandI/Odatawithaparticular
vehicle,youmustcreateadatabaseonyourserverthatlinks
eachMPmodem’sUniqueMobileDeviceIDtothevehiclein
whichitisinstalled.TheUniqueMobileDeviceIDisanumber
derivedfromtheESN(ElectronicSerial
Number).
UsetheATcommandATI4toobtaintheUniqueMobileDevice
IDfromeachMPmodemyoudeploy.
Note: See “MP Modem
Manager” on page 11.
YoumayalsowanttoassignadevicenametotheMPmodem
thatidentifiesthevehicleinwhichitisinstalled.Youcan
assignthisnamelocallyusing3GWatcherorremotelyusing
MPModemManager.ThedevicenameisincludedintheMTP
datasenttothenetworkserver.
Network
Internet
Frame relay
Firewall