This article discusses what a Hairpin NAT is and its support within CenturyLink Cloud
What is a Hairpin NAT?
Also referred to as "hairpinning", hairpinning describes a communication between two hosts behind the same NAT device using their mapped endpoint.
Hairpinning/Hairpin NAT support
CenturyLink Cloud supports Hairpinning/Hairpin NAT services at a platform level globally. Any new or existing public IP addresses are provided this functionality.