I can use my own domain for free and it works just fine with IPv4 and IPv6.
I'm using it with am apple airport router and it's working fine
NetSetMan - Are you tired of changing your network configuration on your laptop every day?
No-IP - Dynamic DNS and Managed DNS Provider
TCP/IP Manager - Designed to help computer users keep track of their network configuration in different locations.
DNS-O-Matic - DNS-O-Matic (dnsomatic.
Mobile Net Switch - Mobile Net Switch allows you to automatically switch network related settings on the fly based on...
iWantMyName - Register your own custom domain for web applications, email, blog or website such as Google Apps...