--- title: "Network segmentation with VLANs | DataRoad IT" description: "VLANs and network segmentation: how to isolate guests, voice, cameras and servers to stop ransomware and gain performance. No-obligation proposal." language: en url: https://www.dataroad-it.com/en/vlan-network-segmentation-business/ source: https://www.dataroad-it.com/en/vlan-network-segmentation-business/ publisher: DataRoad IT (DataRoad - IT Services and Consulting), Portugal --- > VLANs and network segmentation: how to isolate guests, voice, cameras and servers to stop ransomware and gain performance. No-obligation proposal. # Network segmentation with VLANs: stopping ransomware by zone At a glance For decision-makers short on time. - 01 A VLAN divides the network into logical zones using the same switches. - 02 Segmentation stops ransomware jumping from a PC to the servers. - 03 Put staff, guests, servers, VoIP and cameras on segments of their own. - 04 All it takes is managed switches and a well-documented implementation. ### In this article On a flat network, a single infected laptop can encrypt the invoicing server in minutes. **VLAN network segmentation** cuts that path: it divides the infrastructure into logical zones on the same switches, so that a failure at one point does not contaminate the rest, and, along the way, makes the network faster and simpler to manage. Many companies still have not done it. ## What is a VLAN, without the jargon? Picture an open-plan office where anyone can walk into any room. A VLAN adds walls and locked doors without changing the building: the hardware is the same, but each group of devices only sees what it needs to see. ## How does segmentation stop an attack? By containing it. If a visitor's phone or a staff PC is compromised, the threat stays locked inside its segment and cannot reach servers or critical data. Against internal ransomware spread, few measures deliver such a high return. ## Which zones should a business network have? | Segment | Why isolate it | | --- | --- | | Staff | Never shares a network with guests | | Visitors / guest Wi-Fi | Internet access only | | Servers and invoicing | The most valuable assets stay protected | | VoIP telephony | Voice gets priority, with no interference from data | | CCTV and IoT | Rarely updated devices, kept apart | ## Does the network get faster? Yes. Less broadcast traffic travelling everywhere and the ability to prioritise what is critical make the network more stable, faster and far easier to diagnose when something fails. ## Frequently asked questions ### With 15 people, do I need VLANs? Yes, at the very least to isolate guest Wi-Fi from the internal network. The more the company grows, the more segmentation pays off. ### Do I have to buy new equipment? You need managed switches, standard in any professional environment. If the network runs on home equipment, renewing the active equipment is the starting point. ### Doesn't it make everything more complicated? Quite the opposite, if the implementation is done well and documented: problems stay isolated and the network becomes predictable. The key is having someone who designs and operates the segmentation rigorously. ## Next step: segment your company's network DataRoad - IT Services and Consulting redesigns, segments and then manages your network, see [business network modernisation](https://www.dataroad-it.com/en/network-infrastructure-modernisation-lisbon/). Request a no-commitment proposal. **More than 10 workstations · support contract · remote, on-site and telephone support.** Call +351 211 459 950 * or write to sales@dataroad.pt. **Call to a Portuguese landline.* Related: [network infrastructure](https://www.dataroad-it.com/en/structured-cabling-installation/) · [managed cybersecurity](https://www.dataroad-it.com/en/managed-cybersecurity-services/) · [IT consultancy](https://www.dataroad-it.com/en/it-consulting-diagnosis-before-investment/) Chosen by respected and international companies ★★★★★ 5,0 · 52 Google reviews ★★★★★ 5,0 · 52 Google reviews DataRoad ## Related articles [Networks and cablingManaged SD-WAN: multiple stores and offices without outagesA store without internet cannot sell or invoice. 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