Network
VLANs explained for small business
Split staff, guest, cameras, and servers on separate virtual networks — without enterprise complexity.
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What is a VLAN?
A virtual LAN segments traffic on the same physical switches into isolated broadcast domains. Guest Wi‑Fi, security cameras, servers, and staff PCs can coexist on one switch pair without chatting freely to each other.
What does a typical SME VLAN layout look like?
VLAN 10 staff, VLAN 20 guest (internet only), VLAN 30 servers/NAS, VLAN 40 VoIP or cameras if needed. Firewall rules control what may cross VLANs — for example staff to servers allowed, guest to servers denied.
What equipment do VLANs require?
Managed switches and a firewall or router that understands inter-VLAN routing. Document IP schemes and DHCP scopes. Label switch ports in a spreadsheet — future you will thank present you.
When should you keep networking simple?
A five-person office on pure cloud apps might survive one flat network temporarily — but separate guest Wi‑Fi still matters. Grow into VLANs before adding on-prem servers or IoT fleets.
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Common questions
What is a VLAN?
A virtual LAN segments traffic on the same physical switches into isolated broadcast domains. Guest Wi‑Fi, security cameras, servers, and staff PCs can coexist on one switch pair without chatting freely to each other.
What does a typical SME VLAN layout look like?
VLAN 10 staff, VLAN 20 guest (internet only), VLAN 30 servers/NAS, VLAN 40 VoIP or cameras if needed. Firewall rules control what may cross VLANs — for example staff to servers allowed, guest to servers denied.
What equipment do VLANs require?
Managed switches and a firewall or router that understands inter-VLAN routing. Document IP schemes and DHCP scopes. Label switch ports in a spreadsheet — future you will thank present you.
When should you keep networking simple?
A five-person office on pure cloud apps might survive one flat network temporarily — but separate guest Wi‑Fi still matters. Grow into VLANs before adding on-prem servers or IoT fleets.
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