VLAN is a method used to create logical network segments within the same physical network infrastructure. Separation of staff, guest, and server traffic simplifies access design; Security between partitions also requires routing and permission rules.
What need does separating networks meet?
Guest internet, cameras, management interfaces, and business applications do not have the same access requirements. Separating networks according to their functions makes it possible to clearly define which group will access which resource.
Creating a VLAN alone does not secure all traffic. If cross-department access is open, users may access more resources than expected. The main output of the design is the definition of necessary permissions along with reserved networks.
How to prepare an access matrix?
| resource group | sample need | Limit to be evaluated |
|---|---|---|
| guests | internet access | No access to in-house resources required |
| Staff | Business applications and shared printer | Only necessary services and destinations |
| Management devices | Network equipment management | Authorized accounts and management paths |
The table is a sample design. Actual permits are prepared according to the institution's practices and the approval of those in charge.
Why are the concepts of tagged and untagged important?
The VLAN behavior of the end device port and the transport port between the network devices may be different. If the tagging and port membership are incorrect, the device may end up on the wrong network or access may be cut off completely. MikroTik's bridge VLAN table document describes this configuration and administrative access risks.
Technical reference: MikroTik — Bridge VLAN table.
Before making changes to the live switch, take a configuration backup and keep alternative administrative access available. Menu options and hardware behavior should be verified by model and version.
How to prove that the distinction works correctly?
- Check that the sample device in each group receives the expected address.
- Verify permitted app access with actual transactions.
- Attempt unauthorized access to administrative and server resources from the guest network.
- Check printer, phone and roaming requirements after network change.
For existing groups and applications network segmentation and management You can evaluate its scope.
Related resources
Official sources
Technical documentation and legislation may change; The relevant version and current text should be checked before application.
Frequently Asked Questions
Is using different Wi-Fi name the same as VLAN?
No. The wireless network name, which network it is connected to in the background and the access rules should also be examined.
Does VLAN increase internet speed?
It is not a direct guarantee of speed improvement. The main goal is logical separation and management; performance depends on infrastructure and traffic design.