To connect two different computers, the information must go through 7 levels of encryption and the same amount of decoding. Consider them all for a very long time, so attention will be paid to only one component - gateways. What they are, with the help of which they function, of what types there are, and many other things will be considered in the framework of the article. For completeness, the topic of routes will be touched upon in parallel. Solely to better understand data transfer.
Network Gateways and Routes
Suppose there is one machine that is looking for a specific computer on the network. With the help of this small example, we will find out what gateways are. A description mechanism is needed that provides for how such a data transfer will be accomplished . It is called routing. Set it using the “destination address” and “network gateway”. Moreover, to achieve the required point, a specific tool is used. This is what gateways are and how they work as part of information networks. There can be three types of addresses:- Separate host.
- Subnet.
- The default route. Used when the first two options cannot be applied.
There are also three types of gateways:
- Separate hosts.
- Connections.
- MAC addresses
Default Routes
A little distraction from the topic to understand the operation of the gateway. Every address deserves attention. But this is a separate issue, therefore, we consider only the basis. When the local system needs to establish a connection with a remote host, a route table is accessedto determine if it exists. If the target is on a subnet, a connection to it can be created to allow data transfer. If none of the known routes can approach, the default one is used. This is a specially provided feature, which uses a special type of network gateway (the only one present in the system), which is marked with the C flag. It indicates a machine that has direct connections to the global network (providers can act as such objects), with the hope that the final recipient will have everything it will turn out to be found. This is the principle of data transfer, which allows you to understand what a gateway is in the network, and how important it is for the exchange of information.Dual Connect Hosts
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Gateway operation
A network gateway is a common system, thanks to which packets are forwarded from one connection to another. To send information, he needs to “know” what and where to transfer. With simple networking, you can use static routes,who will know and remember each gateway. For more complex options, various commercial products and auxiliary devices (routers, routers, servers) are used. When information comes from one network (computer), it processes the received data, if necessary, can change the encoding protocol so that the recipient can familiarize himself with the received message. When the gateway receives information, it checks to whom it is intended. If the address is correct, it is transferred to the appropriate part of the computer and data is read. In cases where the recipient is someone else, the information goes further. How to find out the main gateway of your computer? To do this, go to the connection properties, where this parameter is shown.Conclusion
So we figured out what gateways are and why they are needed. In conclusion, we can say that if you want to work with them personally from the point of view of program aspects, there should not be a problem with proper study of this issue. They will only be if you climb to watch what and how is arranged on the hardware component, and if you want to assemble / disassemble. This is not least because of the complexity thereof. Therefore, if you want to configure the computer, it will be enough to work out issues that relate to the software configuration of these devices. We hope that there are no more questions about what gateways are.