--- title: "#vlan articles | Hashnode" description: "Explore 36 articles tagged #vlan on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/vlan" --- Tag # #vlan 36 posts · 0 followers [Salvatore Milite](https://hashnode.com/@idoit) · [Nov 4](https://hashnode.com/posts/one-cable-four-networks/6aebbb268a7e271744302d70) ### [One Cable, Four Networks](https://vrainlab.hashnode.dev/one-cable-four-networks?utm_source=hashnode&utm_medium=feed) The rack is assembled and the hardware is in place. Now the software starts. 7 min read · [vrainlab.hashnode.dev](https://vrainlab.hashnode.dev/one-cable-four-networks?utm_source=hashnode&utm_medium=feed) [JJozzieTech](https://hashnode.com/@jjozzietech) · [Oct 15](https://hashnode.com/posts/storage-failure-arp-race/6ad12b1f0bcfa2196d1b0feb) ### [The storage failure that was actually an ARP race](https://jjozzietech.hashnode.dev/storage-failure-arp-race?utm_source=hashnode&utm_medium=feed) SMB shares failing on Windows, fixed by arp -d, broken again on reboot. Tracing it through Nexus CAM and ARP tables to a duplicate IP on the VLAN. 15 min read · [jjozzietech.hashnode.dev](https://jjozzietech.hashnode.dev/storage-failure-arp-race?utm_source=hashnode&utm_medium=feed) [Nabeel Shaikh](https://hashnode.com/@nabeelshaikh7) · [Jun 9](https://hashnode.com/posts/virtualized-opnsense-router-on-a-stick-and-layer-2-troubleshooting/6a28785521bf3380487bce53) ### [Virtualized OPNsense, Router-on-a-Stick, and Layer 2 Troubleshooting](https://nabeelshaikh7.hashnode.dev/virtualized-opnsense-router-on-a-stick-and-layer-2-troubleshooting?utm_source=hashnode&utm_medium=feed) A deep dive into virtualizing OPNsense on Proxmox using Router-on-a-Stick topology, covering VLAN segmentation, PPPoE config, and troubleshooting. 18 min read · [nabeelshaikh7.hashnode.dev](https://nabeelshaikh7.hashnode.dev/virtualized-opnsense-router-on-a-stick-and-layer-2-troubleshooting?utm_source=hashnode&utm_medium=feed) [Hugo](https://hashnode.com/@hugovalters) · [Apr 28](https://hashnode.com/posts/vlan-segmentation-why-your-smart-fridge-shouldnt-talk-to-your-file-server/69f0a90162cd7ba749e348e2) ### [VLAN Segmentation: Why Your Smart Fridge Shouldn't Talk to Your File Server](https://hugovalters.hashnode.dev/vlan-segmentation-why-your-smart-fridge-shouldnt-talk-to-your-file-server?utm_source=hashnode&utm_medium=feed) I recently audited a homelab belonging to a "Senior Developer" who had over $10,000 worth of enterprise-grade server hardware. He had a 100TB ZFS storage array, three Proxmox nodes, and a dedicated Opnsense firewall. But when I looked at his network ... 3 min read · [hugovalters.hashnode.dev](https://hugovalters.hashnode.dev/vlan-segmentation-why-your-smart-fridge-shouldnt-talk-to-your-file-server?utm_source=hashnode&utm_medium=feed) [Hugo](https://hashnode.com/@hugovalters) · [Apr 25](https://hashnode.com/posts/vlan-segmentation-because-your-smart-toaster-is-a-moron-and-a-security-risk/69ecb48126bd5515bc6cee29) ### [VLAN Segmentation: Because Your 'Smart' Toaster is a Moron (and a Security Risk)](https://hugovalters.hashnode.dev/vlan-segmentation-because-your-smart-toaster-is-a-moron-and-a-security-risk?utm_source=hashnode&utm_medium=feed) This isn't a suggestion; it's a mandate. If you're running consumer-grade IoT junk on your primary network, you're not just inviting trouble, you're hand-delivering the keys to your entire digital kingdom. We're going to put that garbage in a cage, w... 2 min read · [hugovalters.hashnode.dev](https://hugovalters.hashnode.dev/vlan-segmentation-because-your-smart-toaster-is-a-moron-and-a-security-risk?utm_source=hashnode&utm_medium=feed) [Hugo](https://hashnode.com/@hugovalters) · [Apr 24](https://hashnode.com/posts/vlan-segmentation-securing-iot-devices-from-the-main-network/69eb630182c1b472a57fd7c9) ### [VLAN Segmentation: Securing IoT Devices from the Main Network](https://hugovalters.hashnode.dev/vlan-segmentation-securing-iot-devices-from-the-main-network?utm_source=hashnode&utm_medium=feed) This isn't about making your network "smart"; it's about making it resilient to the inevitable stupidity of your "smart" devices. If you've got cheap junk phoning home on your primary network, you're not just inviting trouble, you're leaving the fron... 3 min read · [hugovalters.hashnode.dev](https://hugovalters.hashnode.dev/vlan-segmentation-securing-iot-devices-from-the-main-network?utm_source=hashnode&utm_medium=feed) [Umar Ali Butt](https://hashnode.com/@umarbutt01) · [Feb 11](https://hashnode.com/posts/vlans-and-trunk-protocols/698c5d96d3ffc60014b7e5de) ### [VLANs and Trunk Protocols](https://umarccna.hashnode.dev/vlans-and-trunk-protocols?utm_source=hashnode&utm_medium=feed) Conditions Required for VLANs A VLAN (Virtual LAN) divides a physical network into multiple logical networks. For VLANs to work properly: 1- Both Interfaces must be in Trunk Mode. 2- Encapsulation must match (Extra Information is added with Frame) 3-... 4 min read · [umarccna.hashnode.dev](https://umarccna.hashnode.dev/vlans-and-trunk-protocols?utm_source=hashnode&utm_medium=feed) [Umar Ali Butt](https://hashnode.com/@umarbutt01) · [Feb 5](https://hashnode.com/posts/day-7-switch-and-vlan-lab/69846524b23e024a3fbfec6d) ### [Day-7: Switch & VLAN Lab](https://umarccna.hashnode.dev/day-7-switch-and-vlan-lab?utm_source=hashnode&utm_medium=feed) Learn how to configure VLANs and assign switch ports for network segmentation in a basic campus LAN setup 2 min read · [umarccna.hashnode.dev](https://umarccna.hashnode.dev/day-7-switch-and-vlan-lab?utm_source=hashnode&utm_medium=feed) [Umar Ali Butt](https://hashnode.com/@umarbutt01) · [Feb 5](https://hashnode.com/posts/switch/69845d7e8335429e2161303b) ### [Day-7 : Switch](https://umarccna.hashnode.dev/switch?utm_source=hashnode&utm_medium=feed) Learn about network switches, their types, functions, MAC addresses, VLANs, and port assignments. Perfect for IT professionals 4 min read · [umarccna.hashnode.dev](https://umarccna.hashnode.dev/switch?utm_source=hashnode&utm_medium=feed) [Gurupreeth H](https://hashnode.com/@gurupreethh) · [Nov 24, 2025](https://hashnode.com/posts/how-i-built-a-smart-airport-network-using-cisco-packet-tracer-vlan-ospf-iot/6924a0005c3943f4cbb41dda) ### [“How I Built a Smart Airport Network Using Cisco Packet Tracer (VLAN + OSPF + IoT)](https://smart-airport-network.hashnode.dev/how-i-built-a-smart-airport-network-using-cisco-packet-tracer-vlan-ospf-iot?utm_source=hashnode&utm_medium=feed) Discover how VLANs, OSPF, and IoT were used to create a smart airport network with Cisco Packet Tracer, enhancing communication efficiency 2 min read · [smart-airport-network.hashnode.dev](https://smart-airport-network.hashnode.dev/how-i-built-a-smart-airport-network-using-cisco-packet-tracer-vlan-ospf-iot?utm_source=hashnode&utm_medium=feed)