A gateway is a transition point between two networks via which data is forwarded from one network to another.
What does gateway mean in detail?
A gateway connects different networks with each other, for example the internal company network with the Internet. It ensures that data reaches the right destination and can be exchanged between different systems.
A gateway often also takes on additional tasks, for example:
Inspection of data traffic
Forwarding of requests
Implementation of safety rules
In many cases, a company’s router is such a gateway.
Where do I come across this issue in my day-to-day work?
When accessing the Internet in the company
When sending and receiving e-mails
When using cloud services
Practical example: You open a website in the browser. Your request is first routed to the Internet via your company’s gateway. The gateway may check whether the connection is permitted before the page is loaded.