When I get back in the office i'll try and make it work..what does your setup look like?
Great, Carl ! Comparison will be very valuable. My settings are simple enough,
ADSL (IPv4/PPPoA) --> Alcatel Speedtouch 510 (passes IP proto 41 thru to) --> Windows XP comp.
The Speedtouch includes an ethernet switch to which other computers connect directly or over powerline - no wireless here!
Softwarewise, I had to replace tcpip6.sys and 9to4svc.dll by their pre-KB978338 versions, and disable the Firewall. These annoying changes I would like to avoid, precisely.
Else nothing special, I used old style ipv6.exe commands, and it just works with the specified limits.
:: ipv6 config - Windows XP sp3
ipv6 -p rtu ::/0 2/::216.66.80.30 pub
ipv6 -p adu 2/2001:470:1f0A:69a::2
:: be the IPv6 gateway for our LAN :
:: interface 6 = Ethernet: local area adapter
ipv6 -p rtu 2001:470:1f0B:69a::/64 6 pub
ipv6 -p ifc 2 forw
ipv6 -p ifc 6 forw adv
_______________________________________________________
Ah! Also, vain trials to override 6in4 packet controls per KB978338, in my hosts file :
127.0.0.1 localhost
216.66.80.30 isatap.lan # lan is a (pseudo)domain provided by DHCP
216.66.80.30 isatap.sanguine # sanguine is computername
216.66.80.30 isatap.mydomain.com # taken verbatim from MS article (silly, no?)
I doubt in fact isatap has anything to do with my settings; as almost always, the MS article provides cooking recipes which might or might not apply to your situation, without much explanation.