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M2M Cellular Gateway
5.5.d OpenVPN
OpenVPN is an application that implements virtual private network (VPN) techniques for creating
secure point‐to‐point or site‐to‐site connections in routed or bridged configurations and remote access
facilities. It uses a custom security protocol that utilizes SSL/TLS for key exchange. It is capable of
traversing network address translators (NATs) and firewalls. OpenVPN allows peers to authenticate
each other using a Static key or certificates.When used in a multi‐client‐server configuration, it allows
the server to release an authentication certificate for every client, using signature and Certificate
authority. It uses the OpenSSL encryption library extensively, as well as the SSLv3/TLSv1 protocol, and
contains many security and control features.
Deploy a security gateway for local office and establish a virtual private network with the remote
gateway of another office by using OpenVPN. So, all client hosts behind local security gateway can
make data communication with others behind remote gateway.
In the case when you are a mobile user with your notebook or carrying along a security gateway
to access the servers and database in company headquarters (HQ). And that the security gateway in
HQ supports the OpenVPN server function. You can dial in the HQ gateway and access the HQ
resources by establishing an OpenVPN tunneling. It is a virtual private network between your device
and HQ gateway for your resource accessing.
Index skipping is used to reserve slots for new function insertion, when required.
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