A network gateway is a device that connects two or more networks, allowing them to communicate with each other. One common example is a router.
How a Router Acts as a Gateway:
- Connecting Different Networks: A router typically connects a home or business network (LAN) to the internet (WAN).
- Translating Data: The router translates the data packets from one network to another, ensuring compatibility and smooth communication.
- Security: Routers can act as a firewall, blocking unauthorized access to the network.
Other Examples of Network Gateways:
- Firewall Appliances: These specialized devices are designed to enhance security by filtering network traffic.
- VPN Gateways: These gateways create a secure connection between networks, allowing users to access resources remotely.
In essence, any device that connects two distinct networks and facilitates communication between them can be considered a network gateway.
