pfSense

I have an IPv4 address from my ISP and I'm using Hurricane electric tunnel for IPv6 addresses. Im also using DynDNS both custom and standard domains both of which support IPv4 and IPv6 address for each host, however the Dynamic DNS page in pfSense only list the IPv4 address. If I log into my account for DynsDNS and add an IPv4 for a given host..it will remain until the next time that the Dynamic DNS client in pfSense updates the host. Once pfSense updates the host information the IPv6 address is removed.