Sierra Wireless MP 880W manual Retrieve the Unique Mobile Device ID, Solutions to the NAT problem

MP880W Modem User Guide

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.

Note: See “MP Modem

Manager” on page 17.

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Solutions to the NAT problem

If your service 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.

Firewall

NetworkInternet

Frame relay

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 IMEI (International Mobile Equipment Identity).

Use the AT command ATI4 to obtain the Unique Mobile Device ID from each MP modem you deploy.

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.

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