Introduction to the Raven XE
It is recommended that you use a USB 2.0 cable with your Raven XE and connect directly to your computer for best throughput.
Virtual serial port
The Raven XE supports one virtual serial port over USB. This VSP can be used, for example, to send AT commands, or to run many serial based applications such as HyperTerminal→.
Networking
IPSec
The IP protocol that drives the Internet is inherently insecure. Internet Protocol Security (IPSec), which is a standards‐based protocol, secures communications of IP packets over public networks.
IPSec is a common network layer security control and is used to create a virtual private network (VPN).
The advantages of the IPSec feature includes:
•Data Protection: Data Content Confidentiality allows users to protect their data from any unauthorized view, because the data is encrypted (encryption algorithms are used).
•Access Control: Access Control implies a security service that prevents unauthorized use of a Security Gateway, a network behind a gateway or bandwidth on that network.
•Data Origin Authentication: Data Origin Authentication verifies the actual sender, thus eliminating the possibility of forging the actual sender’s identification by a third‐ party.
•Data Integrity: Data Integrity Authentication allows both ends of the communication channel to confirm that the original data sent has been received as transmitted, without being tampered with in transit. This is achieved by using authentication algorithms and their outputs.
The IPSec architecture model includes the Sierra Wireless AirLink gateway as a remote gateway at one end communi‐ cating, through a VPN tunnel, with a VPN gateway at the other end. The remote gateway is connected to a Remote network and the VPN is connected to the Local network. The communication of data is secure through the IPSec protocols.
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