# Update IPv6

To update IPv6 configurations for LANs in the Data Center Designer (DCD), follow these steps:

1\. In the **DCD**, go to **Menu** > **Virtual Data Centers**.

2\. Select the VDC and the LAN for which you want to update the IPv6 address, and select the **Members** tab.

3\. You can update your **IPv6 CIDR block** with **prefix length /64** from the VDCs allocated range.

4\. Start provisioning by clicking **PROVISION CHANGES** in the Inspector pane.

![Update an existing IPv6 configuration](https://1737632334-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MifAzdGvKLDTtvJP8sm%2Fuploads%2Fgit-blob-785b05b2e116eccbf638ce3fb3b2f5c34749a3e6%2Fupdate-ipv6.png?alt=media)

The Virtual Data Center (VDC) will now be provisioned with the new network settings. In this case, the existing configuration gets reprovisioned accordingly.

{% hint style="info" %}
**Note:** IPv6 traffic and IPv6-enabled LANs are now supported for the [<mark style="color:blue;">Flow Logs</mark>](https://docs.ionos.com/sections-test/guides/network-services/flow-logs) feature.
{% endhint %}