A technique used to reduce network overhead, especially in ref="module.php?name=Lexikon&file=search&eid=1&query=wide area network">wide area networks (WAN). Some network ref="module.php?name=Lexikon&file=search&eid=1&query=protocol">protocols send frequent packets for management purposes. These can be ref="module.php?name=Lexikon&file=search&eid=1&query=routing">routing updates or ref="module.php?name=Lexikon&file=search&eid=1&query=keep-alive">keep-alive messages. In a ref="module.php?name=Lexikon&file=search&eid=1&query=WAN">WAN this can introduce significant overhead, due to the typically smaller ref="module.php?name=Lexikon&file=search&eid=1&query=bandwidth">bandwidth of WAN connections. Spoofing reduces the required bandwidth by having devices, such as ref="module.php?name=Lexikon&file=search&eid=1&query=bridge">bridges or ref="module.php?name=Lexikon&file=search&eid=1&query=router">routers, answer for the remote devices. This fools (spoofs) the ref="module.php?name=Lexikon&file=search&eid=1&query=LAN">LAN device into thinking the remote LAN is still connected, even though it' s not. The spoofing saves the WAN bandwidth, because no packet is ever sent out on the WAN. LAN ref="module.php?name=Lexikon&file=search&eid=1&query=protocol">protocols today do not yet accommodate spoofing easily. ["Network Spoofing" by Jeffrey Fritz, BYTE, December 1994, pages 221 - 224]. (1995-01-13)

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