The latest articles on DEV Community by Marie Lynne (@mltremblaydev). https://dev.to/mltremblaydev https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3995724%2F83af327c-12a2-4b4c-964e-ad06bb838181.png https://dev.to/mltremblaydev en Marie Lynne Sun, 21 Jun 2026 20:13:02 +0000 https://dev.to/mltremblaydev/vlsm-subnetting-180k https://dev.to/mltremblaydev/vlsm-subnetting-180k <h2> VLSM Subnetting </h2> <p>I work as a network admin in Montréal, and VLSM subnetting is<br> one of those concepts that clicked for me only after I built<br> my own home lab to practice on. Here's the <a href="https://github.com/mltremblaydev/subnetcalc" rel="noopener noreferrer">code</a> I wish<br> I'd had when I started.</p> github learning networking tooling