What is a proxy IP address? When you connect to the Internet through a proxy, the proxy server’s IP address will be displayed instead of your home IP address. Proxy IP addresses are designed to provide greater privacy when browsing the web. A port number is a piece of address information used to identify the recipients and senders of network messages. These numbers are also commonly associated with TCP/IP network connections. Port numbers allow different applications on the same computer to share network resources. Furthermore, port numbers can range from 0 to 65535.
As you can see in the image, the numbers marked in red make up the IP address of the proxy IP address. The number marked in blue is the port number. 8080 is the default port number, which is usually used for proxy and caching. To obtain a proxy, special services are used that can provide you with secure access to the network.
Understanding TCP/IP Protocol
TCP/IP is a set of communications protocols used to connect network devices on the Internet. Transmission Control Protocol/Internet Protocol uses two protocols—TCP and IP—and implements layers of protocol stacks. Each layer is designed to provide a well-defined network service to the protocol above it.
Understanding Application Layers
The application layer is one of the layers in the TCP/IP protocol suite and the seven-layer Open Systems Interconnection model. Application layers include protocols that facilitate interprocess communication on an IP network. Some common application layer protocols include:
- HTTP (Hypertext Transfer Protocol)
- SMTP (Simple Message Transfer Protocol)
- SNMP (Simple Network Management Protocol)
- FTP (File Transfer Protocol)
Understanding Transport Layers
The Transport Layer Protocol is the fourth layer of the OSI reference model. It provides transparent data transfer between two communicating systems or end systems that use the services of the Network Layer, such as the Internet Protocol layer. Since the Transport Layers provide end-to-end information transfer and control, they can be relied upon to provide reliable and cost-effective data transfer, as well as the quality of service required by a particular application.
Understanding Network Layers
Network layers are considered the foundation of the Open Systems Interconnection model. It is also the third layer of the model that provides data routing paths for smooth network communication. At the network layer, data will be transmitted in the form of packets along one or more logical network paths in an organized format.
Understanding Data Link Layers
In computer networks, the data link layer is the second layer of the OSI model. The layer is also responsible for transmitting data between nodes in a local area network or neighboring network nodes in a wide area network. Common data link protocols include point-to-point protocol, Ethernet, advanced data link control procedures, and others.