Why VLANs Are Essential for a Secure Camera System
Business security isn't just about cameras and recording equipment. The network architecture determines how secure and reliable a camera system really is, and VLANs (Virtual Local Area Networks) play a key role here. They split network traffic into logical segments so that cameras, office equipment and IoT devices operate separately from each other, which improves both performance and security.
This guide explains what VLANs are, why they matter for security cameras and how to set them up with UniFi and Reyee.
What is a VLAN?
A VLAN is a virtual subnetwork that creates multiple separate networks within a single physical network infrastructure. Each VLAN behaves as its own network segment, even when devices share the same physical switches and routers.
With VLANs you can, for example:
- Keep cameras separate from the office or guest network
- Isolate IoT devices from business systems
- Separate network segments by function
Why VLANs matter for camera systems
1. Network security
Cameras can be targeted by network-based attacks. If cameras sit on the same network segment as laptops or servers, a single vulnerability can give an attacker access to other systems. VLANs restrict traffic so that only explicitly permitted traffic gets through.
When you put cameras in a separate VLAN:
- Other devices have no direct access to them
- Firewall rules can restrict communication between VLANs
- Lateral movement by attackers is limited
2. Better network performance
In one large flat network, broadcast and multicast traffic can build up, which is especially noticeable with camera video streams. VLANs keep broadcast domains small, so video streams run more consistently without lag or packet loss.
3. Easier management
VLANs make your network easier to keep track of:
- Segments can be managed clearly by function
- Network traffic can be monitored per segment
- Problems can be pinpointed more quickly
VLANs in practice: UniFi and Reyee
UniFi
UniFi supports VLANs through the UniFi Network Controller. Features include:
- Creating VLAN networks
- Assigning ports or Wi-Fi SSIDs to specific VLANs
- Configuring firewall or zone-based rules
You can set up dedicated VLANs for cameras, separate from office workstations and guest networks.
Recommendations for UniFi VLANs:
- Put cameras in a separate VLAN
- Configure firewall rules for the access that's actually needed
- Apply VLAN isolation for network security
Reyee
Reyee routers (such as the EG series) support VLAN configuration:
- The network can be divided into multiple logical subnets
- Cameras can get their own VLAN with their own IP range and DHCP scope
- VLANs can be managed through Reyee Cloud or the app
Putting cameras in a separate VLAN keeps their traffic apart and simplifies management.
When should you use VLANs?
VLANs are recommended for:
- Installations with multiple security cameras
- Networks where internal data needs to be protected
- Environments with IoT and guest networks
- Situations where network performance and reliability are important
Conclusion
VLANs are an essential part of a secure network for camera systems. They:
- Improve network security
- Optimise network performance
- Simplify management and troubleshooting
With UniFi, VLANs can be set up professionally and at scale for medium-sized to large systems. With Reyee, VLANs are accessible through a cloud- and app-based approach, suitable for small to medium-sized installations.
UMATECH can advise on implementing VLANs in business networks and camera systems, including design and configuration.
