---
title: Zyxel/Zywall
slug: zyxelzywall
description: "Learn how to activate the Cloud filter on your Zyxel/Zywall device efficiently. This guide covers connecting to the control panel, adjusting WAN DNS settings, configuring Dynamic DNS (DDNS) with WWW.DynDNS.ORG, and setting up the DHCP Server.
docTags: 
createdAt: 2024-01-25T10:09:18.307Z
---

## Overview

If you have not yet registered for the service, you can do so by visiting our registration page. Connect to the control panel by entering the IP address of the Zyxel or Zywall router in the address bar of any browser. Then, log in by entering your administrative credentials.

## Configure the Device DNS

First, you need to configure the DNS of the device. Click on the gear icon on the left and then open the **Network** menu. Next, go to **WAN**.

Look for the WAN DNS Assignment item and select **User Defined** from the drop-down menu. Then enter the following cloud addresses in the First DNS Server and Second DNS Server fields respectively:

- **First DNS Server:** 185.236.104.104
- **Second DNS Server:** 185.236.105.105

## Configure Dynamic DNS Service

At this point, you need to activate and configure the Dynamic DNS service. Click on the **Network** menu and then on **DDNS**. Put a check mark on Enable Dynamic DNS to enable the service, and configure the various fields exactly as follows:

- **Service Provider:** Choose WWW\.DynDNS.ORG as the service.
- **Host Name:** Enter any name you like for this field, for example, the word Filter.
- **Username:** Enter the specific username assigned to your dynamic network inside our dashboard. Do not use your main registration email.
- **Password:** Enter the specific password assigned to your dynamic network.

Click **Apply** to save the changes.

:::hint{type="info"}
It is absolutely not necessary to register for the DynDNS service. Our system will still work perfectly since the filter automatically redirects the update request to itself.
:::

## Enable the DHCP Server

At this point, you can configure the DHCP Server to automatically assign network parameters, including our filtered DNS, to the various internal devices. To do this, click on the **Network** menu and then on **DHCP Server**.

Enable the service by putting a check mark on the Enable DHCP Server item. Enter the first IP of your local range in the Initial IP Pool Address field and the total number of addresses to be assigned within the Pool Size field. Then click on the **Apply** button to save.

Next, open the **Advanced** tab and look for the DNS Server item. Select the User Defined item and enter the following DNS addresses within the First DNS Server and Second DNS Server fields respectively:

- **First DNS Server:** 185.236.104.104
- **Second DNS Server:** 185.236.105.105

:::hint{type="info"}
Alternatively, it is possible to set the local IP address of the Zyxel or Zywall router as the only DNS in your DHCP settings. This way, the clients will use the DNS set on the router, which is already configured to point to our cloud servers.
:::

Finally, click **Apply** to keep the changes. As a last option, it is also possible to manually set our DNS addresses or the local device IP on the internal network clients one by one.