Subnet24 Blog
Your place to up to date network articles and IPAM related material
IPAM for Hospitality: Managing Hotel Networks with Guest WiFi, IoT, and POS Systems
IPAM for Hospitality: Managing Hotel Networks with Guest WiFi, IoT, and POS Systems By Mike Walton, Founder of CertMS *With 20+ years managing enterprise IT infrastructure, I’ve watched hospitality networks transform from simple setups to complex ecosystems. Modern hotels don’t just provide beds and breakfast—they’re running data centers…
IPAM for Financial Services: Meeting Banking Compliance and Security Requirements
title: “IPAM for Financial Services: Meeting Banking Compliance and Security Requirements”slug: “ipam-financial-services-banking-compliance-network-security”url: “/ipam-financial-services-banking-compliance-network-security”date: “2026-05-05”author: “Mike Walton”keywords: –…
IPAM for Kubernetes and Container Orchestration: Managing Pod IP Addresses at Scale
title: “IPAM for Kubernetes and Container Orchestration: Managing Pod IP Addresses at Scale”slug: “ipam-for-kubernetes-container-orchestration-pod-ip-management”url: “/ipam-for-kubernetes-container-orchestration-pod-ip-management”date: “2026-04-28”author: “Mike Walton”keywords: –…
IPAM for Dev, Test, and Production Environments: Keeping Your Subnets in Sync
title: “IPAM for Dev, Test, and Production Environments: Keeping Your Subnets in Sync”slug: “ipam-dev-test-production-environments-subnet-management”url: “/ipam-dev-test-production-environments-subnet-management”date: “2026-04-21”author: “Mike Walton”keywords: – “IPAM dev…
IPAM as Your Network Source of Truth: The Foundation for Reliable Automation
title: “IPAM as Your Network Source of Truth: The Foundation for Reliable Automation”slug: “ipam-network-source-of-truth-foundation-automation”url: “/ipam-network-source-of-truth-foundation-automation”date: “2026-04-14”author: “Mike Walton”keywords: – “network source of…
Network Device Lifecycle and IPAM: Managing IP Addresses from Deployment to Decommissioning
Network Device Lifecycle and IPAM: Managing IP Addresses from Deployment to Decommissioning By Mike Walton, Founder of CertMS *With 20+ years managing IT infrastructure and PKI systems, I’ve watched countless organizations struggle with the same problem: they’re great at adding devices to their network, but terrible at removing them…
IPAM for Virtualized Environments: Managing IP Addresses Across VMware, Hyper-V, and Beyond
IPAM for Virtualized Environments: Managing IP Addresses Across VMware, Hyper-V, and Beyond By Mike Walton, Founder of CertMS *After 20+ years managing enterprise IT infrastructure, I’ve watched virtualization transform from a novelty into the backbone of modern data centers. That transformation brought incredible flexibility. It also…
Building an IPAM Governance Framework: Why Technical Tools Need Organizational Alignment
Building an IPAM Governance Framework: Why Technical Tools Need Organizational Alignment By Mike Walton, Founder of CertMS *With 20+ years of experience managing IT infrastructure and PKI systems, I’ve watched countless network teams deploy shiny new IPAM tools only to end up right back where they started—fighting the same IP conflicts, chasing…
IPAM for Retail Networks: Managing POS, Guest WiFi, and IoT Across Multiple Locations
IPAM for Retail Networks: Managing POS, Guest WiFi, and IoT Across Multiple Locations Your store’s card reader just went down during the Saturday afternoon rush. The culprit? An IP address conflict between a newly installed security camera and your primary POS terminal. One customer walks out. Then another. Your cashier stands there…
Network Device Naming Conventions: How Smart Naming Makes IPAM Actually Work
Network Device Naming Conventions: How Smart Naming Makes IPAM Actually Work You’re staring at your IPAM tool during a 2 AM outage. The device causing problems? It’s called “SERVER-42.” Great. That tells you nothing about where it is, what it does, or why it’s melting down right now. Meanwhile, your colleague named…
IPAM Change Tracking: Who Modified That IP Address and Why It Matters
IPAM Change Tracking: Who Modified That IP Address and Why It Matters You’re staring at a network outage at 2 AM. Two devices have the same IP address. Someone changed something. But who? And when? Without proper tracking, you’re flying blind. You’ll spend the next hour digging through emails, pinging team members, and trying to…
IPAM for Faster IT Onboarding: How Network Documentation Accelerates New Hire Productivity
IPAM for Faster IT Onboarding: How Network Documentation Accelerates New Hire Productivity Your senior network admin just gave two weeks notice. They’ve got 14 years of institutional knowledge locked in their head—subnet configurations, why that legacy VLAN exists, which IP ranges are reserved for printers. Now you’re scrambling to…
VLAN and IPAM Integration: How Subnet Mapping Simplifies Network Management
VLAN and IPAM Integration: How Subnet Mapping Simplifies Network Management You’ve got 47 VLANs spread across three buildings. Finance is on VLAN 20. Or was it 30? The guest network uses 192.168.50.0/24, but someone definitely carved out a chunk of that range for the new conference room AV equipment last month. And the spreadsheet that was…
IPAM and Staff Turnover: How to Ensure Seamless Network Handoffs When Admins Leave
IPAM and Staff Turnover: How to Ensure Seamless Network Handoffs When Admins Leave Your senior network admin just gave two weeks notice. Somewhere in their head lives the complete map of your IP addressing scheme, the history of why certain subnets exist, and the tribal knowledge about that one server that needs a static IP or everything breaks….
IP Address Capacity Planning: How to Forecast Subnet Growth and Avoid Running Out of Addresses
IP Address Capacity Planning: How to Forecast Subnet Growth and Avoid Running Out of Addresses You find out your subnet is full at the worst possible moment. A new server won’t come online, a VoIP phone can’t register, or a critical device throws a duplicate IP error during a Monday morning rush. The scramble to carve out addresses or…
Eliminating Tribal Knowledge in Network Management: How IPAM Creates Organizational Resilience
title: “Eliminating Tribal Knowledge in Network Management: How IPAM Creates Organizational Resilience”slug: “eliminating-tribal-knowledge-network-management-ipam”date: “2026-01-26”author: “Mike Walton”keywords: – “tribal knowledge network management” – “IPAM…
How Proper IPAM Prepares Your Network for IT Audits and Compliance Reviews
How Proper IPAM Prepares Your Network for IT Audits and Compliance Reviews Your auditor just sent an email requesting a complete inventory of your network infrastructure. Due in 48 hours. Your stomach drops because you know those spreadsheets haven’t been updated in months, and tracking down who changed what IP address when feels like…
IPAM for Distributed IT Teams: Managing Network Infrastructure Across Remote Workforces
IPAM for Distributed IT Teams: Managing Network Infrastructure Across Remote Workforces Your network admin in Chicago just assigned 192.168.1.50 to a new server. Meanwhile, your colleague in Austin gave that same IP to a contractor’s laptop twenty minutes ago. Neither knows about the conflict until users start complaining about connectivity…
Real-Time IPAM Collaboration: Why Synchronized Updates Prevent Network Chaos
Real-Time IPAM Collaboration: Why Synchronized Updates Prevent Network Chaos Picture this: Your network admin in the Dallas office just assigned 192.168.10.45 to a new server. At the exact same moment, your colleague in Atlanta grabbed that same IP for a critical database migration. Neither knows what the other did. By tomorrow morning,…
Understanding DNS in IP Address Management: The Backbone of Internet Connectivity
The realm of IP Address Management (IPAM) continues to evolve with the increasing complexity of network infrastructures. One area that remains critical in the management and operation of networks is the Domain Name System (DNS). This post dives deep into the role of DNS in IPAM, how it forms the backbone of Internet connectivity, and best…