How To Enable IPv6 on Heroku
What is IPv6?
IPv6 (Internet Protocol Version 6) is replacing Internet Protocol Version 4 as the overall number of devices connected to the Internet has balooned to the point where we are running out.
Why You Might Need This?
Apple has started to require direct IPv6 support as part of their app approval process. Enabling IPv6 with Expedited WAF can prevent app rejection for this reason and requires no code changes to your mobile application.
Depending on your client configuration it may be the case that direct IPv6 connections are somewhat faster than comparable IPv4 (though this is negligible in practice).
Prerequisites
What you need to get started:
- Expedited WAF add-on is set up in front of your application.
How To Enable IPv6 on Expedited WAF
A direct IPv6 address is not applied to your site, but not exposed in the interface. Please contact support@expeditedsecurity.com for information. IPv6 support is free as part of all plans.
Resources
Learn more about HTTP2