---
title: "Client IPv6 Support"
slug: "client-ipv6-support"
updated: 2025-05-21T10:12:56Z
published: 2025-05-21T10:12:56Z
stale: true
---

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

# Client IPv6 Support

## Overview
The Client IPv6 Support rule lets you enable or disable IPv6 support for all site hosts. By default, client IPv6 support is enabled.

- **Enabled**: The CDN responds to DNS queries with an AAAA record, allowing IPv6-capable clients to connect over IPv6.

- **Disabled**: The CDN responds with only an A record (IPv4), forcing all traffic to use IPv4 even if the client supports IPv6.

This is a site-wide setting. Defining the rule for one host affects all hosts. This rule cannot be applied to individual hosts or paths.


## Configure the Rule
Here, we'll describe how to configure the rule with the Delivery Service Management UI. 

API Users may choose to [build the site configuration offline](https://api-docs.qwilt.cqloud.com/docs/CDN%20APIs/Sites%20API/prepare-the-configuration-json).

**To configure a Client IPv6 rule:**
1. [Navigate to the Select Rule dialog](/v1/docs/add-a-rule).
2. In the Select Rule dialog, choose **Client IPv6 Support**. 
3. Toggle **Client IPv6 Support** on or off.  

    ![ipv6SupportRule.png](https://cdn.document360.io/fa039225-513b-46a1-ba78-a57a1f1cb7c6/Images/Documentation/ipv6SupportRule.png){height="" width=""}

 
5. Choose **Add Rule**. 

    :::(Info) ()
   This setting is automatically applied to all the site   hosts.
    :::



## SVTA Component: QW.ClientConnectionControl
When you save the configuration version, the **QW.ClientConnectionControl** component is added to the JSON configuration. This is a [private feature developed by Qwilt](https://api-docs.qwilt.cqloud.com/docs/CDN%20APIs/Sites%20API/Site%20Configuration%20JSON%20Format/prepare-the-configuration-json#qwilt-private-features). 

In this example, the QW.ClientConnectionControl SVTA component is configured to disable IPv6 connections.

```json
{
  "generic-metadata-type": "MI.PrivateFeature.Qwilt.QW.ClientConnectionControl",
  "generic-metadata-value": {
    "enable-ipv6-connection": false
  }
}
```