IT and security / Free editable template

Small office network diagram template

A network diagram shows how every device in the office connects to the internet and to each other. This example maps a 25-person office from the internet connection through the router, firewall and core switch to five VLANs for staff, guests, phones, printers and servers, with remote staff on a VPN and a table of subnets.

Use this template →See the example ↓

No account needed · Opens as your own editable page

Preview the small office network diagram

View full-size preview ↗
Small office network diagram example showing internet, router, firewall and core switch, five vlans with example devices, subnet table and segmentation rules
Everything in this example is editable. Replace the labels, move the shapes and adapt the layout to your work.

How to use this template

  1. Start at the internet edge

    Draw the internet connection, router and firewall first, then the core switch. Label each with its model or IP address if that helps the people supporting it.

  2. Group devices by VLAN

    Put devices into the network segments they actually use. Keep guests and smart devices away from staff and servers.

  3. Record the rules

    List the subnet for each VLAN and the traffic allowed between them. The rules matter as much as the boxes when something goes wrong.

Questions about this template

Can I add more VLANs to the diagram?

Yes. Copy a VLAN box, connect it to the core switch and add a row to the subnet table with its range and rules.

Do I need an account to use it?

No. Open the template and edit it in your browser. Your work saves on this device. An account is optional if you want to sync your workspace.

Can I export the finished diagram?

Yes. Use Export in the editor to save a PNG, SVG or PDF, or download an editable .epicdraw backup.

More IT and security templates →