(Page 1 of 4)
A Gateway functions as a translator and can convert one protocol (one standardized communication method) to another. If protocol translation is not a comfortable thought, think of it as a language translator. Gateways may be very complex devices, depending on features purchased. The majority of gateways operate at the 7th layer (Application layer) of the OSI Model.
An easy trap to fall into, is to confuse gateways, (the hardware), with gateway, a logical (non-hardware software) decision point. In this section, the term gateway refers to hardware.
Several types of gateways are: Internet Gateways, Proxy Gateways, E-mail or SMTP (Simple Mail Transfer Protocol) Gateways, and SNA (Systems Network Architecture) Gateways.
Home - Table Of Contents - Contact Us
CertiGuide for Network+ (http://www.CertiGuide.com/netplus/) on CertiGuide.com
Version 1.0 - Version Date: November 7, 2004
Adapted with permission from a work created by Tcat Houser and Helen O’Boyle.
CertiGuide.com Version © Copyright 2004 Charles M. Kozierok. All Rights Reserved.
Not responsible for any loss resulting from the use of this site.