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gateway is a tool, usually a pc, that enables networks with totally different protocols and architectures to interconnect in any respect ranges of communication. Its function is to translate data from the protocol utilized in a community to the protocol used within the vacation spot community.

The gateway or "gateway" is generally a pc configured to supply the machines of an area community ( LAN ) linked to it with entry to an exterior community, usually performing IP handle translation operations ( NAT : Community Deal with Translation). This handle translation functionality makes it doable to use a way referred to as IP Masquerading (IP masking), which could be very usually used to supply Web entry to computer systems on an area space community by sharing a single Web connection, and subsequently, a single exterior IP handle.

The IP handle of a gateway usually seems to be like or and makes use of some predefined ranges,,,,, which embody or are reserved for native networks (see native community). As well as, it must be famous {that a} gadget that acts as a gateway in a community should essentially have 2 community playing cards . When typing the gateway quantity, it asks you for an handle and a password, which when matched opens a web page the place it reveals the modem, WAN and LAN data , which may then be configured.

The gateway, or higher identified by its title in English as "Default Gateway", is the default route that's assigned to a pc and its perform is to ship any packet for which it doesn't know which interface to ship it by way of and isn't outlined. within the gadget routes, sending the packet by way of the default route.

In home environments, ADSL routers are used as gateways to attach the native residence community with the Web community, though this gateway doesn't join 2 networks with totally different protocols, it does make it doable to attach 2 impartial networks utilizing the aforementioned NAT.