What is GRE? Generic Routing Encapsulation, or GRE, is a protocol for encapsulating data packets that use one routing protocol inside the packets of another protocol. “Encapsulating” means wrapping one data packet within another data packet, like putting a box inside another box. GRE is one way to set up a direct point-to-point connection across a network, for the purpose […]
What is Port Forwarding? A port is a communication endpoint in a networking system. You can recognize a port by its 16-bit unsigned number, and each of them specifies a particular process for a different network service. It is always associated with an IP address and a communication protocol. Each of the port sends its data through a networking device […]
What Is a VPN? In simple terms a VPN (Virtual Private Network), refers to a group of computers, operating together over a public network—i.e., connected to the Internet. When connected to a VPN, what usually happens is that you launch a VPN client, then you log in, the computer then exchanges trusted keys with a server that is quite far […]
Cellular router market analysis and industrial grade cellular router With the rapid development of Internet technology, more and more people and devices need to access Internet. In many application scenarios, fixed broadband access is difficult and expensive, which call for cellular router. Market analysis shows that global cellular router market in 2019 is around 1000 millions US dollars, and the […]
What is OpenVPN? OpenVPN is a virtual private network (VPN) system that implements techniques to create secure point-to-point or site-to-site connections in routed or bridged configurations and remote access facilities. It implements both client and server applications. OpenVPN allows a single point of participation in the establishment of a VPN to use a shared key, electronic certificate, or username/password for […]
What is Internet of Things (IoT)? According to Wikipedia, the Internet of Things (IoT) is “a network of devices that are not normally considered computer-based, and that are able to achieve greater value and service by giving them the ability to connect and communicate with other devices”. Simply put, it is a technology that forms a network in which things […]