What is a VLAN and when does a business need one?
How to separate staff, guests, POS, CCTV and IoT on a managed network.
A VLAN separates logical traffic across compatible switches and access points. It does not replace secure router configuration, but helps organise a business network.
Segmentation
Staff, guests, cameras and POS can have different rules and access.
Equipment
The router, switch and APs must support VLAN tagging and be configured consistently.
Documentation
A simple table of networks, ports and addresses prevents problems during expansion or diagnosis.
Mistakes to avoid
- Creating VLANs without routing rules
- Losing management access
- Not documenting ports
THEVULGO tip
List which devices must communicate before designing segmentation.
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