https://my-it-blog.netlify.app/tags/dhcp/ Recent content in DHCP on My IT Journal Hugo en-us Thu, 23 Apr 2026 00:00:00 +0000 https://my-it-blog.netlify.app/posts/dhcp-server/ Thu, 23 Apr 2026 00:00:00 +0000 https://my-it-blog.netlify.app/posts/dhcp-server/ <h1 id="-dhcp-lab">🧪 DHCP Lab</h1> <h2 id="-objective">📌 Objective</h2> <p>Understand how DHCP works in real network environment and how to debug common failure scenarios using a structured top-to-bottom approach.</p> <hr> <h2 id="-environment">⚙️ Environment</h2> <ul> <li>Virtualization: VirtualBox</li> <li>OS: Ubuntu Server (1 DHCP Server VM &amp; 2 Client VMs)</li> <li>Network mode: Internal Network + NAT (enp0s3 ignored for DHCP lab)</li> </ul> <hr> <h2 id="-network-setup">🛠️ Network Setup</h2> <h3 id="interfaces">Interfaces</h3> <p>DHCP Server</p> <ul> <li>enp0s8 -&gt; 192.168.10.10/24 (Lab network)</li> <li>enp0s3 -&gt; NAT</li> </ul> <p>Clients</p> <ul> <li>enp0s8 -&gt; DHCP assigned IPs</li> <li>enp0s3 -&gt; NAT (not used)</li> </ul> <hr> <h3 id="-network-configuration-netplan">⚙️ Network Configuration (Netplan)</h3> <p>Both server and clients are configured using Netplan, which defines interface behavior before DHCP starts.</p>