The first (that I know of) NAT64 implementation was in OpenBSD 5.1
release and there's support in the default firewall/packet filter (pf). I
think FreeBSD has this code working as well, but I'm not sure, and I'm too
lazy to check.
I find it ironic that the h-online was 'corrected' following a reader's comment ("IPv4 host can not initiate a connection with a IPv6 only host with NAT64"). This is actually false. The NAT64 gateway _can_ do this, provided you have configured it correctly.
I found this http://home.nuug.no/~peter/pf/eurobsdcon2012/nat64.html quite helpful, as well as a post on the mailing list [1] describing commong scenarios. Of course, the pf.conf manpage describes with all the details, but that should go without saying :-)
IPv4-only hosts like Windows XP[1], game consoles, and all embedded devices don't work with NAT64. You can do some kind of NAT464, but that's kludgier than DS-Lite.
[1] Doesn't do DNS over IPv6, so can't operate in a IPv6-only environment.
The first (that I know of) NAT64 implementation was in OpenBSD 5.1 release and there's support in the default firewall/packet filter (pf). I think FreeBSD has this code working as well, but I'm not sure, and I'm too lazy to check.
Here are some OpenBSD 5.1 release NAT64 details:
http://www.h-online.com/open/news/item/NAT64-OpenBSD-5-1-wil...
The following talk on NAT64 is a bit old (2010) but good
http://www.bsdcan.org/2010/schedule/events/197.en.html