On 20-Feb-2007, at 17:16, Martin Kealey wrote:
Question: are there any (DSL?) CPE units for sale or in development that will do v6 to v4 translation, plus v6 pass-thru?
In practical terms (and I'm being only slightly pedantic) there *is* no v6 to v4 translation. There are tunnels, and there is native IPv6. Macs have been able to turn on 6to4 (which is a automatic tunnelling mechanism, and not any kind of v6/v4 translation scheme) with a relatively minor amount of clicking for a few years now, with no additional software to install. It's not on by default, and it's sufficiently well-hidden that no normal Mac user is likely to configure it by accident, but it's there. Similarly, *BSD has had 6to4 shipping in the default install for a long time (man stf). I don't know about Linux, but people keep telling me how great and wonderful it is, so surely they must have had 6to4 built-in for MUCH LONGER THAN FREEBSD LOLZzz!1!1!! etc. With Vista shipping with 6to4 support, that sounds to me like pretty much everybody who wants to play with v6 can do so without buying anything. Well, once everybody upgrades to Vista, on account of how great it is, etc. The comment about 6to4 only being enabled on Vista if there's no NAT in the path is interesting. How does Vista know if you're behind a NAT? Does it do active probes, or does it just assume that everything behind a NAT must be numbered in RFC1918 space? Joe