Deep Dive into IP addresses

Dear Learners,

This LeD is about IP addresses. Here we will look at their structure, the different components of IP addressing scheme called the sub-net mask and the gateway address. We will also discuss the method of identifying different network addresses and determining which addresses belong to a network. This LeD has four videos and a few questions in between. Let us begin by looking at the basic structure of an IP address.

Now that you know the nomenclature of an IP address, let's look at a sub-net mask which allows us to determine the network to which an IP address belongs.

We discussed in the previous dialog that the sub-net mask takes only specific values between 0 to 255. This is because of an operation that it performs to calculate the network address. Let's look at it in detail.

Now that you have an idea of IP addressing and sub-net masks, let us try to calculate the number of IP addresses of a network with their network and broadcast address for a given sub-net mask. Also we will look at a set of addresses known as private addresses which are set of network addresses that anyone can use within their own network.

We hope you have some clarity on IP addressing so now let's get to Cisco Packet Tracer and addressing in action !