“TCP/IP - Transmission Control Protocol / Internet Protocol”


Definition: Transmission Control Protocol (TCP) and Internet Protocols (IP) are two distinct network protocols, technically speaking. TCP and IP are so commonly used together, however, that TCP/IP has become standard terminology to refer to either or both of the protocols.IP corresponds to the Network layer (Layer 3) in the OSI Model, whereas TCP corresponds to the Transport layer (Layer 4) in OSI. In other words, the term TCP/IP refers to network communications where the TCP transport is used to deliver data across IP networks.
The average person on the Internet works in a predominately TCP/IP environment. Web browsers, for example, use TCP/IP to communicate with Web servers.
Also Known As: Transmission Control Protocol / Internet Protocol.
IP Addresses are the fundamental method for computers to identify themselves on most computer networks. Every computer (or other network device) connected to the Internet has an IP address. This tutorial explains the basics of finding, changing, and hiding (your) my IP addresses.
Inside IP Addresses
IP addresses are written in a notation using numbers separated by dots. This is called “dotted-decimal” notation. Examples of IP addresses in dotted-decimal notation are 10.0.0.1 and 192.168.0.1 although many millions of different IP addresses exist.
Finding IP Addresses
Everyone who needs to use a computer network should understand how to look up their own IP addresses. The exact procedure to follow depends on the kind of computer you use. Additionally, in some situations you may need to find the IP address of someone else’s computer.
Fixing IP Address Problems
When a computer network is functioning properly, IP addresses stay in the background and don’t require any specific attention. However, some common problems you may encounter when setting up or joining a computer network include:
A computer has no IP address
Two computers have the same IP address
A computer has a “bad” IP address that won’t allow it to “talk” on the network
To solve these problems, several techniques can be applied including IP address release / renew, setting static IP addresses, and updating the subnet ccnfiguration