IP Address – What is it?
For many people, their Internet service is something that happens as though by magic, but if you are curious about learning more about how your computer gets online and communicates with other machines, you are going to find that you need to think about your IP address. The term IP address is one that comes up with regular frequency when you are thinking about computers and networking and even if you know where to find it, you might not be able to explain what it means or what it does. When you are thinking about learning more about networking and when you want some simple answers as to what an IP address is and what it does, there are some things that you need to keep in mind.
In the first place, remember that the term itself is short for “Internet Protocol.” This is a label that has been applied to allow you to connect to a wider network, and if you are on the Internet, you are using an IP address to get there. Remember, though, that you are looking at something that has several functions. For instance, websites have IP addresses too; from your computer’s point of view, they are both a pathway as well as a location. When you are thinking about the way your computer interacts on the network, remember that it should act as your passport. If you are not getting an IP address, you are not going to be getting online at all. Your IP address is something that is granted to you by your Internet service provider, or your ISP. In many cases, you will be able to simply plug your computer into the wall or into your cable modem, depending on what your service consists of, and you will be able to get online right away. In many cases, you will first need to deal with authenticating yourself to your ISP, and you need to verify that you have service with them, but it usually takes very little time at all. With a greater interest in convenience and speed, there are companies which are deliberately working for plug and play Internet, where you can plug your computer in and simply start surfing as you please. This can make a huge difference to the way that you connect.
When you are thinking about your IP address, remember that things that are not your ISP that can still hand out IP addresses. For example, take a look at your wireless router, whether you use it at work or at home. You are only going to be getting one IP address through the router, but the router arranges the information so that multiple devices can use the connection at once. Remember that the IP address that is given out by your ISP is going to go through your router and then the router will generate an IP address for your computers. An IP address that begins with 192.168.1.0 or 192.168.1.1 is a sign that you are being given an address by a router rather than a direct connection.
When you want to learn more about networking in general., you need to look into being able to tell the difference between an IP address and a MAC address. Though people often confuse them, the truth of the matter is that they do not have a great deal in common. At the most basic level, a MAC address is simply a twelve character long string of numbers and letters; typically, when they are written down, they are divided into pairs through the use of dashes. If you have a device that can connect to the Internet, that device will have a MAC address. A MAC address can be used to identify a machine on the system and you will find that this can be an important security feature. When machines go through a router, the network as a whole can only see the MAC address of the router, not the machines behind it. Take some time and learn how to find your own computer’s MAC address. You will discover that one way to secure a network is to make sure that it is only open to a certain list of MAC addresses; as all devices have different MAC addresses, this is a more secure way to take care of a network.
