>> >> > SPI's are in many ways good. Do they owe their ubiquity to NAT44 and how will the lack of NAT66 affect that? I think it is much too early to tell. > > Joe 1. Agreed. 2. No, they were widely available prior to the existence of NAT44 and would likely have become ubiquitous even if NAT had not caught on. 3. I doubt it will. Owen