Sierra Wireless AceView User's Guide download pdf (Page 18)

AirLink Raven XE HSPA User Guide

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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 identifi-

cation by a third-party.

• Data Integrity: Data Integrity Authentication allows both ends of the communi-

cation 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 communicating, 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.

Figure 1-7: IPSec Architecture

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Sierra Wireless AceView User's Guide Page 18