---
title: "Link Network Discovery hub to Classic | Lansweeper Classic"
slug: "link-network-discovery-hub-with-lansweeper-on-premises"
description: "Link your Network Discovery hub to Lansweeper Classic to manage IT and OT assets from one web console. Learn how to set up the link and sync assets."
updated: 2026-06-17T09:42:26Z
published: 2026-06-17T09:42:26Z
canonical: "docs.lansweeper.com/link-network-discovery-hub-with-lansweeper-on-premises"
stale: true
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.lansweeper.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Link Network Discovery hub with Lansweeper Classic

You can link your Network Discovery hub with a Lansweeper Classic installation for access to Lansweeper's full capabilities. By linking your hub, you can manage both your IT and OT assets from the Lansweeper web console.

              
              

You can link multiple Network Discovery hubs with a single on-premise Lansweeper installation.

## Prerequisites

- Your Lansweeper Classic installation needs to be at least version 11.1.
- Your Network Discovery hub installation needs to be at least version 4.1.2.
- The machine hosting your Network Discovery hub installation needs to be able to reach the machine hosting the Lansweeper Classic installation.
- You need to know the IP address or URL of the Lansweeper Classic scan server you would like to link to.
- You need to open port 9524 by default. You can select another port for the Network Discovery hub in the web console.

              OT assets stay in Lansweeper Classic

              

You can link with a Network Discovery hub even when your Lansweeper Classic installation is connected to a Lansweeper Site. In that setup, OT assets sync to Lansweeper Classic but not to your site.

## Link your Network Discovery hub

1. Go your Network Discovery hub.
2. Click **Linking options** and select **Link with Classic**.
3. Enter the URL of your scan server and select **Link with Classic**.  

The linking URL is a combination of `https://`, the domain name or IP address of the server running Lansweeper Classic, and the port you've configured in the web console. The default linking URL is `https://[domain name or IP address]:9524/`.
4. Go to your on-prem web console. A notification mentioning an Network Discovery hub link request is displayed.
5. Select **View requests**. Alternatively, go to **Configuration > Network Discovery hubs links overview**.

> **Tip:** If you don't see a link request in your web console, select **Resend link request** in the Network Discovery hub. If you don't want to link your Network Discovery hub, select **Remove link request** in the Network Discovery hub.
6. Select the check mark **✓** to accept the pending authorization request.
7. Your OT assets will be synced to Lansweeper Classic. This may take a while.

After synchronization, you can find your scanned OT assets by going to **Assets > OT assets**. Alternatively, you could filter the entire list of assets by entering "OT" in the **Type** field.

## Unlink your Network Discovery hub

              
              

Note that the information you added to OT assets in your Lansweeper Classic web console does not sync to the Network Discovery hub. Unlinking your Network Discovery hub will result in losing any added information.

1. Go to your Network Discovery hub.
2. Select **Classic Link Overview**.
3. Select **Unlink from Classic**.