Le 2 avr. 2010 à 07:54, Igor Gashinsky a écrit : > I, for one, get pretty damn pissed when my vendors roll out new features > (most of which I could care less about) while breaking existing things > that I use -- I tend to not deploy those things into production.
That's precisely the reason why it *must not* become a rule that DNS servers would everywhere refuse to respond AAAAs when queried in IPv4. This is in use today and works well. > So, why > is it that we think that our users are any different? Remember, to them > IPv6 is meaningless, they just want "the web" to work. Fortunately, there is already at least one large ISP whose users who have IPv6 enabled ignore in general whether they work in IPv4 or IPv6, and don't suffer from IPv6 being enabled. There should therefore be a solution to your problem. > So, we are absolutely going to need to fix the underlying problems to > make sure that things are not going to get worse and to make sure that > they can get better over time (some of that is under way now). The first thing to do is to understand why some operators have problems with IPv6, or anticipate to have such problems, while some others haven't. > This is why we are going to have whitelists, and, on top of whitelists, we > are going to need other measures to drop those numbers significantly (like > filter-aaaa, or anything better that people come up with) in order to get > more ipv6 adoption (by several orders of magnitude).. A suggestion could be that ISPs start with sending AAAAs *only* to sites to which they provide native IPv6. These sites shouldn't have problems, as the experience acquired by Free has shown. If these sites can be recognized with some specific IPv4 prefixes, distinguishing them would be much easier than with a white list containing individual addresses. Note that Free didn't need to recognize these sites, because in its case *all* customers have Free's CPEs, and these CPEs offer native IPv6 prefixes if IPv6 is activated. (In Free's case, these prefixes are statelessly derived from IPv4 addresses with 6rd, which makes it particularly easy to deploy). Thought? Regards, RD _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
