I am running Vista SP1 dual stack with an IPv6 ayiya tunnel from sixxs.net. Installed the aiccu command line utility, and the v901 tap virtual network driver. For some reason the Vista DNS service does not recognise my (non link-local) IPv6 address in my virtual network adapter (openvpn tap-Win32 v901) as being valid for enabling automatic "AAAA" IPv6 DNS lookups. As Per: http://technet.microsoft.com/en-us/library/bb727035.aspx I am forced to "fake out" Vista into enabling "AAAA" lookups by setting a static IPv6 address on my physical network adapter of "2002:81a8:102::" (no default route). This is just a temporary workaround. What I really want to know is: Is this a Microsoft bug, or is this an openvpn/aiccu/sixxs bug ? I know other users have this issue, (100% replication) Anyone else out there using sixxs.net ayiya tunnel broker with Vista SP1 ? --Thanks! -__Dave For completeness sake, here is my ipconfig output for the two adapters in question: (including the fake-out ipv6 config for my wireless physical network adapter) Wireless LAN adapter Intel 4965AGN: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Intel(R) Wireless WiFi Link 4965AGN Physical Address. . . . . . . . . : 00-13-E8-46-EC-67 DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IPv6 Address. . . . . . . . . . . : 2002:81a8:102::(Preferred) Link-local IPv6 Address . . . . . : fe80::eda0:6c1e:edf:643e%14(Preferred) IPv4 Address. . . . . . . . . . . : 192.168.0.118(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Lease Obtained. . . . . . . . . . : Saturday, May 17, 2008 12:26:41 PM Lease Expires . . . . . . . . . . : Sunday, May 18, 2008 12:26:41 PM Default Gateway . . . . . . . . . : 192.168.0.1 DHCP Server . . . . . . . . . . . : 192.168.0.1 DNS Servers . . . . . . . . . . . : 199.45.45.14 151.202.0.85 Primary WINS Server . . . . . . . : 192.168.0.107 NetBIOS over Tcpip. . . . . . . . : Enabled Ethernet adapter sixxs: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : TAP-Win32 Adapter V9 Physical Address. . . . . . . . . : 00-FF-5C-C2-CF-E7 DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IPv6 Address. . . . . . . . . . . : 2001:4830:1600:147::2(Preferred) Link-local IPv6 Address . . . . . : fe80::f91f:8e:66cb:2f8%19(Preferred) Default Gateway . . . . . . . . . : 2001:4830:1600:147::1 DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1 fec0:0:0:ffff::2%1 fec0:0:0:ffff::3%1 NetBIOS over Tcpip. . . . . . . . : Disabled