Last updated：2020-06-09 09:54:23
This topic describes the process of using and configuring IPv6 addresses for KEC instances. The general steps are shown in the following table.
|1. Build an IPv6 VPC environment
|IPv4 is used by default for the VPC associated with KEC instances. To use IPv6, you must first set up an IPv6 VPC environment.
|2. Assign IPv6 addresses to KEC instances
|After IPv6-enabled VPC and subnet are selected, the system will automatically assign IPv6 addresses to KEC instances.
|3. Enable IPv6 public network bandwidth
|By default, IPv6 addresses configured for KEC instances only support communication in the VPC. To use the IPv6 addresses to access the public network, you must enable IPv6 public network bandwidth.
|4. Use IPv6 auto-configuration tool
|If KEC instances cannot automatically discover IPv6 addresses, it is recommended that you use the configuration tool to automatically obtain IPv6 addresses.