CloudFlare does have a pretty compelling compatibility layer just for that purpose: https://support.cloudflare.com/hc/en-us/articles/202494830-Pseudo-IPv4-Supp

CloudFlare does have a pretty compelling compatibility layer just for that purpose: https://support.cloudflare.com/hc/en-us/articles/202494830-Pseudo-IPv4-Supporting-IPv6-addresses-in-legacy-IPv4-applications https://support.cloudflare.com/hc/en-us/articles/202494830-P...