Editing Internet protocol suite (section)

===Early implementation===
In 1975, a two-network IP communications test was performed between Stanford and University College London. In November 1977, a three-network IP test was conducted between sites in the US, the UK, and [[Norway]]. Several other IP prototypes were developed at multiple research centers between 1978 and 1983.<ref name=":30">{{Cite web |last=Cerf |first=Vinton G. |date=1 April 1980 |title=Final Report of the Stanford University TCP Project |url=https://www.rfc-editor.org/ien/ien151.txt}}</ref>

A computer called a [[Router (computing)|router]] is provided with an interface to each network. It forwards [[network packet]]s back and forth between them.{{Ref RFC|1812}} Originally a router was called ''gateway'', but the term was changed to avoid confusion with other types of [[Gateway (telecommunications)|gateways]].<ref name="DXqFd">{{cite book |last1=Crowell |first1=William |last2=Contos |first2=Brian |last3=DeRodeff |first3=Colby |title=Physical and Logical Security Convergence: Powered By Enterprise Security Management |date=2011 |publisher=Syngress |isbn=9780080558783 |page=99}}</ref>