On 13/02/2012 11:32, Niall Litchfield wrote: > I can't really see many internal corporate networks adopting IPv6 at all > (at least for many years), I just don't see what advantages it gives a > private network over the costs involved in moving. External networks > presumably will have to adopt the standard sooner or later. I fully agree! It makes me wonder who has asked Oracle to provide IPv6 listeners and name resolution in the first place. I wouldn't really recommend turning it on this "deep" in the stack. You could have IPv6-> IPv4 conversion in the application/load balancer layer if the application has to be accessible from the outside world. For anything that stays inside IPv4 will be enough for a long time. Maybe there are reasons to simplify the stack and use IPv6 throughout? Regards, Martin -- //www.freelists.org/webpage/oracle-l