What is Gateway In Computer Network | Unext


What is a gateway? A gateway is a data communication framework giving admittance to a host network through a remote network. The computer gives connectivity to a remote network or a computerized framework outside the host network node boundaries.

A gateway is a hardware device that goes about as a “gate” between two networks. It might be a server, firewall, router, or another device that enables traffic to stream through the network.

Gateways serve as an exit and entry point for a network, as all data should go through or communication gateway before being routed. 

  1. What is Gateway? How dose it work?
  2. Types of gateways
  3. Difference between a gateway and a router
  4. What Are The Uses Of Gateways In Computer Networks ?
  5. Features Of Gateways In Computer Networks 


1. What is Gateway? How Does It Work?

It is a state of a network that can get to different networks. Typically, in the intranet, a node or router can go about as a router or the gateway node that interfaces the networks are called a gateway. Big companies’ PCs that deal with the traffic between enterprise networks are named gateway nodes. For example, the PCs utilized by Internet service providers to connect fluctuating users at the moment time to the web are gateway nodes.

It very well may be connected to the router since a router precisely thinks about the routing path of data packets that shows up at the gateway, then a switch chooses in the reasonable in and out the way of the gateway for the assigned packet. The gateway is a required trait of courses, even though different devices can act well as a gateway.

2. Types of gateways

On-premise of the direction of data flow, types of a gateway in networking are extensively separated into two classes:

  • Bidirectional Gateways:

They permit data to stream in two directions. They can be utilized as synchronization devices.

  • Unidirectional Gateways:

They permit data to stream in just a single direction. Changes made in the source node are duplicated in the destination node, but not the other way around. They can be utilized as archiving devices.

On-premise of functional abilities, there can be an assortment of gateways, the conspicuous among them are the following:

  • Network Gateway:

    This is the most widely recognized sort of gateway that gives an interface between two different networks working with various protocols.
  • Web Application Firewalls:

    This sort channels traffic to and from a web server and sees application-layer data.
  • Cloud Storage Gateway:

    A network server or node deciphers storage demands with various cloud storage administration API calls, like REST or SOAP.
  • XML, SOA or API Gateways:

    This sort oversees traffic streaming into and out of service, miniature administrations arranged architecture or Extensible Markup Language-based web service.
  • IoT Gateway:

    It is an answer for empowering IoT correspondence, for the most part, device-to-cloud communications or device-to-device communications.
  • Internet-To-Orbit Gateway:

    It interfaces devices on the Internet to spacecraft and satellites orbiting the earth.
  • Media Gateway:

    This sort of changes over data from the format needed for one kind of network to the configuration needed for another.
  • VoIP Trunk Gateway:

    It encourages data transmission between regular telephone tools like fax machines and landline phones with a VoIP network.
  • Email Security Gateway:

    This forestalls messages that break the organization’s strategy or will move data with malignant purposes.

3. Difference Between Router and Gateway

  • The difference between a Gateway and a Router is that the Gateway device changes one format or protocol over to another, while the Network device forwards packets starting with one network and then onto the next.
  • The Primary Goal of a Gateway is to translate with one protocol and then onto the next, while the Router is to Route traffic starting with one network and then onto the next.
  • Dynamic Routing in Gateway is not supported, while in Router is supported.
  • Related terms of Gateway are a Voice Gateway, Gateway Router, and Proxy server, while Router is Wireless Router, Internet Router.

4. What Are The Uses Of Gateways In Computer Networks?

  • Allows to move all kinds of desired information over the Web  
  • Provides the entry gate for several networks allowing users to perform multiple tasks like emailing, navigating the Web Page, buying any product and services over the Web, etc. 
  • It facilitates converting information, data, or other communications from one protocol or format to another 

5. Features Of Gateways In Computer Networks

  • A gateway is ideally located at the boundary of any network and manages all the inflows or outflows data from that network. 
  • It acts as a path between two different networks that are operating with different transmission protocols. 
  • It acts as a protocol converter, providing the necessary compatibility between different protocols used in the two networks. 
  • A gateway is capable of working efficiently at any layer of the OSI model. 
  • It successfully stores information about the routing paths of the communicating networks. 
  • While used in an enterprise scenario, a gateway node is often supplemented as a proxy server or firewall. 
  • The packet switching technique is used to transmit data across networks. 
  • It is generally implemented as a node with multiple network interface cards. It is connected to different networks and yet be configured using the software. 
  • It uses a packet-switching technique to transmit data across networks. 


A typical function of a gateway is a gateway to connect from the user’s tenant to the normal capacity pool. It is given as a virtual switch devoted to users on repetitive equipment.

A gateway server permits clients to approach their hosted webpage without approaching the remainder of the internet. It advances filtered solicitations to end-points however obstructs the wide range of various solicitations. This implies that when a client demands.

An IP gateway alludes to a device on a network that sends nearby network traffic to different networks. The subnet veil number helps characterize the connection between the host (switches, routers, computers, and so on) and the remainder of the network. We hope you understand what is gateway, it works, and its types.

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