---
title: "Multi Site Concepts"
description: "If a company has more than one site, there are a few different solutions to prevent problems with the VLAN."
category: "Port-Based NAC"
subcategory: "Port-Based NAC"
last_updated: "2023-02-21"
source_url: "https://docs.xeox.com/port-based-nac/kfxwencCzErupyXTXVc93F/multi-site-concepts/5YSJG49EXNB78QiarHzf7j"
---

# Multi Site Concepts

## Multi Site Concepts

If a company has more than one site, there are a few different solutions to prevent problems with the VLAN

- The company has a strict standard and every site has the same VLAN for the same things. In this case it doesn't matter which site you are from, you won't have a problem with the VLAN.
- If different VLANs are used on the sites, it gets checked if the MAC-Address is known and if the site is another. If that is the case, the VLAN gets set to a VLAN that the site they are currently at needs.
- Or the last solution if someone moves to another site his entry in the database gets changed.