> * I enabled IPv6 on both client and server, setup DNS to have foo.domain
>   point to the v4 address (A record), and foo.ipv6.domain to the IPv6
>   address (AAAA record). I also had a "search ipv6.domain domain" in
>   /etc/resolv.conf of both machines. 

	maybe off topic, but I really do not recommend this setup.
	the setup I prefer is to use the same name for both addresses, like:
foo.feyrer.net.	IN A	1.2.3.4
		IN AAAA	3ffe:501:ffff:9999:1:2:3:4

itojun