The gateway can be on any ip address in the range. The internet sends data to the gateway, and then the gateway passes that information on to your computer. The same thing is true when you get data from the internet. Then the gateway sends that data on to the internet. When you send send information to the internet, your computer sends data to the gateway. For instance, let's say that your computer is on the ip address 192.168.1.3. The Gateway acts sort of like the group's controller. Both the Subnet Address ip address and the Broadcast Address ip address are used to send information to every ip address in the group. Using the 255.255.255.0 subnet from above let me make a table.Įvery group of ip addresses, has a Subnet Address, Broadcast Address, and Gateway. Lets take a closer look at what a group of ip addresses looks like. I mean that they will always look like 111111000000 and never like 1010101101. Subnets will always be all ones on one side, and all zeros on the other. 2*2*2*2*2*2*2*2=256 So we have two hundred and fifty six ip addresses in that range! Another thing that is intresting to know. Another way to do it is to multiply 2 times itself 7 times. Just count the number of zeros, and then take 2 to the number of zeros power. So how do we find out how many ip addresses are in this group? Well its rather simple actually.
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The first step is to put the subnet into binary. Lets take one of the most basic subnets the 255.255.255.0 one, and see how many addresses are in it's range. = There are no ip addresses in this range. This means higher the numbers of a subnet mask are the less ip addresses belong to it. The numbers of a subnet mask count ip addresses that are not there. They don't really behave like you would initially expect them to. There are a couple intresting things about subnet masks. These numbers once again range from 0 to 255. It is made up of four eight bit numbers separated by periods. The subnet mask looks a lot like an ip address. The subnet mask specifies the range of the ip addresses in a group. Every ip address has a corresponding subnet mask. IP addresses are grouped by something called subnet mask.
Ip address subnet mask table series#
So if you think of an ip address as a series of four eight bit numbers separated by periods, you get the following.ġ0010011.10110101.10110111.01010110 = 147.181.183.86 Simple Subnet Masks The smallest number you could see in an ip would be a 0. Since ip addresses are made up of 8 bit numbers, the largest number you will see in an ip address is 255.
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Each number is an eight bit number, and in binary looks like the following. Generally it looks something like 208.155.103.158. The Form of an IP addressĮvery IP address is a series of four numbers separated by periods. Every device on the internet has an ip address. The internet works exactly the same way except on a much larger scale. That means that every printer, fax machine, scanner, copier, computer, router, and server that is on your network has an ip address. For the simplicity of this guide lets assume that every device that connects to a network has an ip address. Last Updated: Febru| Reading Time: 5 minutesīefore reading this guide make sure that you understand Binary Numbers.