---
title: Compatibility between OS Images and different Flexible IP type combinations
description: This page shows the currently known state of compatibility between Scaleway Instance OS Images and the different combinations of Flexible IPs types.
tags: instances flexible ip compatibility routed-ip network configuration
dates:
  validation: 2025-09-22
  posted: 2024-09-09
---

This page presents the currently known state of compatibility between Scaleway Instance OS Images and the different combinations of Flexible IPs types.

## Configuration

|               | **routed_ipv4** | **routed_ipv6** |
| ------------- | ------------- | ------------- |
| **1v4-0v6** | 1             | 0             |
| **Nv4-0v6** | 2+            | 0             |
| **0v4-1v6** | 0             | 1             |
| **0v4-Nv6** | 0             | 2+            |
| **1v4-1v6** | 1             | 1             |
| **Nv4-Nv6** | 2+            | 2+            |


## Matrix

| Image label<sup>1</sup> | **build_date<sup>2</sup>** | **build_tag<sup>3</sup>** | **1v4-0v6** | **Nv4-0v6** | **0v4-1v6** | **0v4-Nv6** | **1v4-1v6** | **Nv4-Nv6** |
| ----------------------- | ------------------------ | ----------------------- | ------------- | ------------- | ------------- | ------------- | ------------- | ------------- |
| **almalinux_8**          | `202407031540`           | `90041a7b`              |        Yes       |       Yes        |      Partly<sup>4</sup>         |       Partly<sup>4</sup>        |       Yes        |       Yes        |
| **almalinux_9**           | `202407041520`           | `a0e9a547`              |       Yes        |       Yes        |       Partly<sup>4</sup>        |        Partly<sup>4</sup>       |       Yes        |       Yes        |
| **centos_stream_9**      | `202407090704`           | `9d844f31`              |       Yes        |       Yes        |      Partly<sup>4</sup>         |       Partly<sup>4</sup>        |       Yes        |       Yes        |
| **rockylinux_8**        | `202407031543`           | `e583b9f3`              |       Yes        |       Yes        |       Partly<sup>4</sup>        |       Partly<sup>4</sup>        |       Yes        |       Yes        |
| **rockylinux_9**          | `202407031500`           | `8e17111b`              |       Yes        |       Yes        |     Partly<sup>4</sup>          |        Partly<sup>4</sup>       |       Yes <sup>6</sup>       |       Yes<sup>6</sup>        |
| **fedora_39**             | `202408261203`           | `db379337`              |       Yes        |       Yes        |      Partly<sup>4</sup>         |       Partly<sup>4</sup>        |       No<sup>7</sup>        |       No<sup>7</sup>        |
| **fedora_40**             | `202408231529`           | `2e2324a6`              |       Yes        |       Yes        |       Partly<sup>4</sup>        |       Partly<sup>4</sup>        |       Yes<sup>6</sup>       |       Yes<sup>6</sup>        |
| **fedora_41**             | `202410311306`           | `67e3f2fd`              |       Yes        |       Yes        |       Partly<sup>4</sup>        |       Partly<sup>4</sup>        |       Yes<sup>6</sup>       |       Yes<sup>6</sup>        |
| **debian_bullseye**       | `202408231510`           | `20ada37d`              |       Yes        |       Yes        |        Partly<sup>4</sup>       |       Partly<sup>5</sup>        |       Yes        |       Yes        |
| **debian_bookworm**       | `202408231520`           | `ff285693`              |       Yes        |       Yes        |       Yes       |      Yes        |       Yes        |       Yes        |
| **ubuntu_focal**          | `202409021112`           | `b2eb59c9`              |       Yes        |       Yes        |      Yes        |      Yes        |       Yes        |       Yes        |
| **ubuntu_jammy**          | `202407031538`           | `1afe725f`              |       Yes        |       Yes        |     Yes       |        Yes      |       Yes        |       Yes        |
| **ubuntu_noble**          | `202407031541`           | `a6b4f635`              |       Yes        |       Yes        |     Yes      |     Yes        |       Yes        |       Yes        |

## Callouts

- **<sup>1</sup>** - Image label as presented be the Marketplace API
- **<sup>2</sup>** - The value of the `build_date` field in the `/etc/cloud/scw-build.info` file
- **<sup>3</sup>** - The value of the `build_tag` field in the `/etc/cloud/scw-build.info` file
- **<sup>4</sup>** - Instance is reachable but the DNS resolution is not working
- **<sup>5</sup>** - Same as 4 + only the first IPv6 gets configured automatically
- **<sup>6</sup>** - The Flexible IP attachment order matters: this only works if at least one routed_ipv6  is attached to the Instance after at least one `routed_ipv4` has been attached
- **<sup>7</sup>** - The version of cloud-init is too old to support such a configuration