What Is a Network Gateway?

A network gateway is a device or software service that enables communication between networks operating on different protocols by translating traffic between them. The article explains that gateways function across multiple OSI layers, serve as control points for security and cost in cloud environments, and come in eight main types including internet gateways, VPN gateways, API gateways, and IoT gateways. Proper gateway selection and monitoring are critical for maintaining secure, efficient, and cost-effective network operations.