Adding IPv6 support isn't like adding most new features. It doesn't give most people something extra. It doesn't "enhance the experience". It is insurance for when the CGN is deployed by the ISP or when the ISP goes IPv6 only and like most insurance you don't know when you will needed and you will be happy you have it when it is needed. It will stop you loosing customers because when either of those events happen and they impact on the functionality of the product your customers won't be in a position to wait for your next release. Cost wise adding IPv6 support is cheaper than adding most other features. -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: marka@isc.org