> it brings many useful standards like mandatory network layer security
Wikipedia and Google seem to confirm that IPsec is mandatory for IPv6 hosts, but how many hosts are really going to support it? I'm pretty sure I can turn on IPv6 on my Linux boxes a lot easier than I can turn on IPsec (step 1: figure out which implementation to install, step 2: figure out byzantine configurations, ...). I think my OS X box has IPv6 turned on out of the box, but I wasn't aware it'd do IPsec without being lovingly configured.
Like multicast and a better solution for portable IP space, I feel like mandatory IPsec will be just another purely theoretical benefit of IPv6. (Which is not to say that I'm not extremely interested in its highest profile promise: more address space.)
Wikipedia and Google seem to confirm that IPsec is mandatory for IPv6 hosts, but how many hosts are really going to support it? I'm pretty sure I can turn on IPv6 on my Linux boxes a lot easier than I can turn on IPsec (step 1: figure out which implementation to install, step 2: figure out byzantine configurations, ...). I think my OS X box has IPv6 turned on out of the box, but I wasn't aware it'd do IPsec without being lovingly configured.
Like multicast and a better solution for portable IP space, I feel like mandatory IPsec will be just another purely theoretical benefit of IPv6. (Which is not to say that I'm not extremely interested in its highest profile promise: more address space.)