In this collection, we have three network gateway systems; Network Routers, NAC & HSIA gateways and Network Access Control (NAC). These are described as below;
Routers:A router is a physical or virtual appliance that passes information between two or more packet-switched computer networks. A router inspects a given data packet's destination Internet Protocol address (IP address). It then calculates the best way for it to reach its destination and then forwards it accordingly.
HSIA Gateways: Also known as High Speed Internet Access. This term generally used in the hospitality industry referring to guest Internet platforms. It enables hotels to manage guest Internet experience while conforming to the hotel's usage policy.
Network access control (NAC): this is a security solution that enforces policy on devices that access networks to increase network visibility and reduce risk.Network Access control also known as network admission control, is the process of restricting unauthorized users and devices from gaining access to a corporate or private network.