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IP Subnet Calculator

 

NodeConnect IP Subnet Calculator
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How to Set Up a Cisco Router as a DHCP Server (Step-by-Step Guide)

Lab time! Want to build a DHCP server?  In this lab, I will show you how to build your own DHCP server on a router using Cisco Packet Tracer, as shown above. By the end of this post, you will be able to create your own DHCP server with a Cisco 2911 router, perhaps in a home lab setting, and prepare you to build your own on other hardware.  Why a Router?  A DHCP server is a centralized, automated service that assigns important network configuration details to devices on a network, such as IP addresses. Without it, we would have to create manual entries for our entire network, which can be time-consuming and lead to errors. Traditionally, there are dedicated servers to handle these functions. There are many ways to implement a DHCP server in your topology, including a dedicated physical server, a virtual machine, cloud-based gateways, and firewalls. However, there are specific benefits to using a router as your DHCP server: Reduced infrastructure: While havi...
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Subnetting Tips

When I was first introduced to subnetting, it was difficult to understand the math and the process behind it. I watched videos but it did not click. I focused more on how to calculate it than on the reasoning behind it. Why do we subnet? I remember seeing forward slashes followed by numbers, classes, letters, network and broadcast addresses - important terms that was overshadowed by just trying to grasp why certain numbers were used.  Years later, I hear the word "subnetting" in one of my courses, and it reminded me of my struggles. Yet, I was excited. It was a time for redemption. Example after example, I started to get them right but also got to understand how to create a subnet with sufficient space for devices. Because of this, I have grown to love subnetting.  For me, it took time - a break that lasted about two years followed by a curriculum that focused on the topic for a few weeks. If you find yourself struggling with subnetting, do not worry. It takes time. If someth...
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New Series: IP in Practice

I have done a few posts on subnetting and the inner workings of DHCP. I wanted to do a post on IPv6 and a hands-on demo on implementing DHCP on actual networking equipment. However, I missed a few parts that I would like to cover that would particularly help in understanding how IP works and why it is needed. Unlike the previous series, this will be a direct approach to a certain protocol: Internet Protocol (IP). I recently started my first series, covering important ports, protocols, and acronyms used in the networking field. However, I realized not only is it difficult to address the ones to mention, but for some letters it's hard to find. The intended structure was to have several per letter not just one. The idea seemed fun and engaging, however, doing over 20 posts alphabetically on acronyms, ports, and protocols lacks order and deviates from the direct approach I want this blog to have. For that reason, I am putting it on hold indefinitely. It was fun at first, but it was not...
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