Westermo RM-80 - Manual (Page 56)

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VPN A type of technology designed to increase the security of
information transferred over the Internet. VPN can work with either
wired or wireless networks, as well as with dial-up connections over
POTS. VPN creates a private encrypted tunnel from the end user’s
computer, through the local wireless network, through the Internet,
all the way to the corporate servers and database.
WAN A communication system of connecting PCs and other computing
devices across a large local, regional, national or international
geographic area. Also used to distinguish between phone-based
data networks and Wi-Fi. Phone networks are considered WANs
and Wi-Fi networks are considered Wireless Local Area Networks
(WLANs).
WEP Basic wireless security provided by Wi-Fi. In some instances, WEP
may be all a home or small-business user needs to protect wireless
data. WEP is available in 40-bit (also called 64-bit), or in 108-bit (also
called 128-bit) encryption modes. As 108-bit encryption provides a
longer algorithm that takes longer to decode, it can provide better
security than basic 40-bit (64-bit) encryption.
Wi-Fi Wireless Fidelity:
An interoperability certification for wireless local area network
(LAN) products based on the Institute of Electrical and Electronics
Engineers (IEEE) 802.11 standard.