User manual

Introduction to the RLXIC-EV RLXIC-EV ♦ Intelligent Cellular
User Manual RadioLinx® Intelligent Cellular Ethernet Gateway for Verizon
ProSoft Technology, Inc. Page 13 of 104
March 10, 2010
1.6 Networking
1.6.1 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 include:
 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 RadioLinx Intelligent Cellular 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.
1.6.2 GRE
GRE (Generic Routing Encapsulation) tunnel is used to carry non-IP packets
through an IP Network. Non -IP packets, that are sent over the GRE tunnel, need
to be first encapsulated. Hence, ALEOS is used to configure and encapsulate
non-IP packets and transmit over IP through the GRE tunnel.