Address family not supported

[WindyWinter]

Hi everyone,
   I'm setting up a VPN over IPv6, attempting to build an IPv4-over-IPv6
tunnel, but when I try to connect to the server, I got this: System call
`getaddrinfo' failed: Address family not supported.
   Client runs WindowsXP, and I did almost exactly the same as
http://www.tinc-vpn.org/examples/windows-install . Here is the configuration
files:
------- tinc.conf -------
Name = windywinter
ConnectTo = server
Interface = VPN
AddressFamily = ipv6

------- host/windywinter -------
Subnet = 10.88.9.11/32
-----BEGIN RSA PUBLIC KEY-----
...
-----END RSA PUBLIC KEY-----

------- host/server -------
Address = 2001:da8:d800:790:218:f3ff:fe2e:52e3  //no matter I change this to
what, it returns the same error.
Subnet = 10.88.9.0/24
-----BEGIN RSA PUBLIC KEY-----
...
-----END RSA PUBLIC KEY-----

   Does anyone knows what caused this? Thanks.
----------
Soli Deo gloria,
yours WindyWinter
and http://www.briefdream.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.tinc-vpn.org/pipermail/tinc/attachments/20090822/db9f40b4/attachment.html>