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Tunneling
The word
tunneling
(also spelled
tunnelling
) has more than one meaning.
The literal meaning refers to the digging of
tunnels
.
Tunneling
can also refer to the exploration of
utility
tunnels by unauthorized people; see
urban exploration
.
In
physics
,
quantum tunneling
involves the
quantum-mechanical
effect of transitioning through a classically-forbidden energy state.
In
computer networking
, tunneling means the transmission of one data
protocol
encapsulated in another using a
tunneling protocol
. This technique often occurs in combination with
encryption
.
Tunnelling
appeared in the 1990s as a colloquial term for fraud committed by a company's own
management
or by major
shareholders
; see
tunneling (fraud)
.
The contents of this article are licensed from
Wikipedia.org
under the
GNU Free Documentation License
.
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01-04-2007 01:21:04
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