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Ipv6 Outbound #477

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c013bd7
First draft - IPv6 outbound
madsd Sep 13, 2024
5f3a332
screenshot
madsd Sep 13, 2024
2ff8162
Update deploy-to-staging-site.yml
jeffwmartinez Sep 14, 2024
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4 changes: 2 additions & 2 deletions .github/workflows/deploy-to-staging-site.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -44,7 +44,7 @@ jobs:
run: cd _site && zip -r ../blog.zip .

- name: Upload artifact for deployment job
uses: actions/upload-artifact@v2
uses: actions/upload-artifact@v4
with:
name: jekyll-app
path: blog.zip
Expand Down Expand Up @@ -106,7 +106,7 @@ jobs:
az account show

- name: Download artifact from build job
uses: actions/download-artifact@v2
uses: actions/download-artifact@v4
with:
name: jekyll-app

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95 changes: 95 additions & 0 deletions _posts/2024-09-17-Announcing-outbound-IPv6-support.md
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---
title: "Announcing outbound IPv6 support in public preview"
author_name: "Mads Damgård"
toc: true
toc_sticky: true
---

## Introduction

A few month ago we announced IPv6 inbound support. We are now ready to invite you to the public preview of IPv6 outbound support in App Service in selected regions. Public preview of outbound IPv6 support for multi-tenant apps is supported on all App Service plan SKUs, Functions Consumption, Functions Elastic Premium, and Logic Apps Standard.

1. Previous announcement: [IPv6 inbound support (multi-tenant)](https://azure.github.io/AppService/2024/06/01/Announcing-Inbound-IPv6-support)
1. This announcement: IPv6 (dual-stack) non-vnet outbound support (multi-tenant)
1. Backlog: IPv6 vnet outbound support (multi-tenant and App Service Environment v3)
1. Backlog: IPv6 vnet inbound support (App Service Environment v3 - both internal and external)

Limitations in this public preview:

* Only a subset of regions are supported - see the list below.
* The IPv6 address is not visible in the `outboundIpAddresses` or `possibleOutboundIpAddresses` properties.

For GA we will work on adding all regions and include the IPv6 addresses in new properties.

## How does it work

IPv6 outbound (dual-stack) allows you to resolve endpoints to IPv6 addresses and call the IPv6 endpoint. There are no changes required in your code to start using IPv6 compatible endpoints.

The first iteration of the implementation does not support virtual network traffic. If your app is integrated with a virtual network and you have application traffic routing aka "Route All" enabled, you will not be able to resolve or reach IPv6 endpoint. If you are using virtual network integration and disable application traffic routing you can resolve and reach public IPv6 endpoints directly. Be cautious with changing the routing though as all your public traffic will not be routed through the virtual network.

To test the IPv6 connectivity you can use the console. You'll also need an IPv6 capable endpoint. In this case I took advantage of the inbound IPv6 preview and created a web app (named `ipv6`) with inbound IP mode set to IPv6 and then called these commands (`-6` is optional, but can be used if the endpoint supports both IPv4 and IPv6):

```bash
nslookup ipv6.azurewebsites.net

curl -6 https://ipv6.azurewebsites.net
```

> ![]({{site.baseurl}}/media/2024/09/ipv6-outbound-test.png)

## Supported regions

This is the current list of supported regions in preview.

| Region | IPv6 inbound | IPv6 outbound (Windows) | IPv6 outbound (Linux) |
| -------------------- | :-------------------: | :----------------------: | :-------------------: |
| Australia Central | :heavy_check_mark: | | |
| Australia Central 2 | :heavy_check_mark: | | |
| Australia East | :heavy_check_mark: | | |
| Australia Southeast | :heavy_check_mark: | | |
| Brazil South | :heavy_check_mark: | | |
| Brazil Southeast | :heavy_check_mark: | | |
| Canada Central | :heavy_check_mark: | | |
| Canada East | :heavy_check_mark: | | |
| Central India | :heavy_check_mark: | | |
| Central US | :heavy_check_mark: | | |
| East Asia | :heavy_check_mark: | | |
| East US | :heavy_check_mark: | | |
| East US 2 | :heavy_check_mark: | | |
| France Central | :heavy_check_mark: | | |
| France South | :heavy_check_mark: | | |
| Germany North | :heavy_check_mark: | | |
| Germany West Central | | | |
| Israel Central | :heavy_check_mark: | | |
| Italy North | :heavy_check_mark: | | |
| Japan East | :heavy_check_mark: | | |
| Japan West | :heavy_check_mark: | | |
| Jio India West | :heavy_check_mark: | | |
| Korea Central | :heavy_check_mark: | | |
| Korea South | :heavy_check_mark: | | |
| Mexico Central | :heavy_check_mark: | | |
| North Central US | :heavy_check_mark: | | |
| North Europe | :heavy_check_mark: | | |
| Norway East | :heavy_check_mark: | | |
| Norway West | :heavy_check_mark: | | |
| Poland Central | :heavy_check_mark: | | |
| Qatar Central | :heavy_check_mark: | | |
| South Africa North | :heavy_check_mark: | | |
| South Africa West | :heavy_check_mark: | | |
| South Central US | :heavy_check_mark: | | |
| South India | :heavy_check_mark: | | |
| Southeast Asia | :heavy_check_mark: | | |
| Sweden Central | :heavy_check_mark: | | |
| Sweden South | :heavy_check_mark: | | |
| Switzerland North | :heavy_check_mark: | | |
| Switzerland West | :heavy_check_mark: | | |
| UAE Central | :heavy_check_mark: | | |
| UAE North | :heavy_check_mark: | | |
| UK South | | | |
| UK West | :heavy_check_mark: | | |
| West Central US | :heavy_check_mark: | :heavy_check_mark: | |
| West Europe | :heavy_check_mark: | | |
| West India | :heavy_check_mark: | | |
| West US | :heavy_check_mark: | | |
| West US 2 | :heavy_check_mark: | | |
| West US 3 | :heavy_check_mark: | | |
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