VLAN Generator
Define VLANs with ID, name and subnet, and generate matching switch configuration commands (Cisco syntax).
Add VLAN| VLAN ID | Name | Subnet (CIDR) | Interfaces (comma-separated) | |
|---|---|---|---|---|
Generated configuration (Cisco syntax)
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How it works
Define VLANs
Enter ID, name, subnet and ports per VLAN.
Check the configuration
View live-generated Cisco syntax.
Apply it
Copy or download as a file.
Benefits
Good to know about this tool
Creates matching switch configuration commands in Cisco-IOS-like syntax from a list of VLANs (ID, name, subnet, interfaces).
Because manually writing VLAN configurations for several VLANs is time-consuming and error-prone.
- Create a VLAN plan for a new office building
- Document existing network segmentation
- Generate a configuration template for identical sites
- Use consistent VLAN numbering across all sites
- Don't use VLAN 1 (default) for production traffic
- Always test generated commands in a lab before applying them
Frequently Asked Questions
Does the syntax work on all switches?
The generated syntax follows Cisco IOS — for other vendors (e.g. MikroTik, HP) it needs to be adapted.
Is my data stored?
No, everything stays in the browser.
The information, templates, scripts, calculations and recommendations provided are intended for educational and assistance purposes only. Always review and test any generated result before production use. IT Smart Service accepts no liability for misuse, data loss, outages, security incidents, or legal, financial or technical damages arising from incorrect or improper use. Responsibility for validation, testing and deployment decisions rests with the user.
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