What is NAT, How NAT Works, and Types of NAT
Explore Network Address Translation (NAT) in computer networking, its purpose, types, benefits, limitations, and real-world applications. Understand NAT's role in IPv4 and IPv6 networks.
Category CCIE R&S
5 Common BGP Misconfigurations, their impact, and How to Fix Them
In this article, we'll go over 5 common BGP misconfigurations, exploring their impacts and addressing how to fix them.
BGP Security Best Practices
In this article, we will discuss 14 BGP Security best practices. These best practices will help ensure that your network is protected from potential attacks and breaches.
What is BGP Regular Expression, and How to Use it Effectively?
In this comprehensive guide, we will cover everything you need to know about BGP regular expressions, or "regex," and how to use them effectively in your network.
BGP States Explained
The goal of this article is to give you a full understanding of the six BGP states of a BGP session, which are idle, connect, active, OpenSent, OpenConfirm, and established, as well as how BGP moves between them.
What is BGP in Networking and How it Works?
In this guide, you'll learn what is BGP in Networking, how it works, and some of its key features, benefits, challenges, and ways to learn BGP concepts faster.
OSPF Troubleshooting Commands Cheat Sheet
In this blog post, you will find a comprehensive list of OSPF troubleshooting commands network engineers can utilize in real-world scenarios.
STP – Spanning Tree Protocol explained in detail
A Spanning Tree Protocol or STP is a layer2 protocol used to prevent loops in a network by ensuring that a single path exists between any two nodes in the network. In this blog post, I will explain the Spanning…
VLAN Tagged vs Untagged (Access vs Trunk): 802.1Q, Native VLAN, and Best Practices
Understand VLAN tagged vs untagged in plain language. We clarify access vs trunk ports, correct 802.1Q tag fields (PCP/DEI/VID), native vs default VLAN, and modern configuration best practices.
What are VLANs and Private VLANs, and How do they work?
A clear, accurate guide to VLANs and Private VLANs (PVLANs)—how they work, when to use them, and the essential security and configuration details you need.