Definitions for "Tunnelling"
the creation of an encrpyted/secured link over a public network. The secured link can support alternate protocols to the public network, although this is transparent to the user. Tunnelling is also used in the context of establishing a secure, open link through a corporate Firewall.
Encapsulation of complete datagrams within other datagrams. Frequently used to transmit non-IP protocols across IP networks.
Tunnelling refers to encapsulation of protocol A within protocol B, such that A treats B as though it were a datalink layer. Tunnelling is used to get data between administrative domains which use a protocol that is not supported by the internet connecting those domains. See also: Administrative Domain.
Use of an underground tunnel to convey wastewater, storm water or combined flows to a treatment facility. Atlanta is already served by two wastewater tunnels - Three Rivers and Intrenchment Creek. A tunnel will be constructed in the Nancy Creek sewer basin to convey sanitary sewer flows from DeKalb to the R.M. Clayton WRC, providing relief from sewage overflows for northeast Atlanta residents.
The process of sending packets to a computer on a private network by routing them over some other network, such as the Internet.