Migrating to IPv6
IPv6 support has been added to AWS since December 2016. So VPCs created prior to that didn't have IPv6 support. This recipe shows how to add IPv6 support with VPCs that have been created with the IPv4 option only.
Getting ready
Log in to your AWS account with proper permissions for creating the required components.
How to do it...
- Open the VPC dashboard by browsing to https://console.aws.amazon.com/vpc. Select the VPC without IPv6 support. You can see that
IPv6 CIDR
is blank as shown in the following screenshot:

Check VPC IPv6 CIDR
- Click
Actions
|Edit CIDRs
. The following window will open. Click onAdd IPv6 CIDR
button.IPv6 CIDR
will be associated. ClickClose
as shown in the following screenshot:

Edit VPC IPv6 CIDR
- You can see it reflected in the
Summary
as well:

VPC Summary after IPv6 Support
- Select the subnet associated with the VPC on which you want to enable IPv6 CIDR.

Subnet summary before IPv6 support
- Click
Subnet Actions
and edit IPv6 CIDR. Click onAdd IPv6 CIDR
. Edit...