config as an exit of "IPv6 over IPv4 tunnel"

[Wojciech Puchar]

>
> Let me explain it in detail.
> Both hostA and hostB have global IPv4 address.
> And hostA has global IPv6 address.
> I have installed FreeBSD 7.0 on both hostA and hostB.
> Then, I want to config "IPv6 over IPv4 tunnel" from hostB to hostA.
> Is it possible?
>
i don't understand why you need single directional tunnel. you need 
bidirectional transmission of IP packets.

man gif