So run IPv6 natively and your tunneling issues are history. son, get a clue. i work for the first isp on the bleeping planet to deploy native ipv6 I beg to differ. Add the word "commercial" and I might agree.
whoops! <blush> apologies!
eliminating tunnels does not make all of the IPv6 problems go away. It just eliminates the ones caused by the use of tunnels.
in and of itself, this is a good thing. tunnels suck caterpillar snot.
The REAL problems are not going anywhere for a long time, if ever.
indeed, many will be with us for a long time. but there are a bunch we could knock off in a few years o dual stack backbones (and it's as much the vendors as the isps here) o dual stack consumer cpe o routers that hold 2m routes *with churn* from enterprise to backbone o test equipment to differentiate vendor hot air from actual performance o nat-pt with standardized algs for at least dns, smtp, http, sip, and rtp randy