Hi there, I hev a problem with installing a Win XP computer accessing a IPV6 lan: First I had installed IPv6 with IPv6 Install. It seems to work, the computer only did not use the Route Advicements in it configuration. For safty I uninstalled and installed (including all the reboots) IPv6 and guess, no IPv6 configuration anymore (as showed in the listing below). Adding a address is also not possible. Does somebody has any clue? Erik-Jan C:\Documents and Settings\roggekamp>ipv6 if Interface 5: Teredo Tunneling Pseudo-Interface Guid {276CF1E7-E2B0-4518-AF92-CE8CFA987053} cable unplugged uses Neighbor Discovery uses Router Discovery routing preference 2 link-layer address: 0.0.0.0:0 preferred link-local <invalid>, life infinite multicast interface-local <invalid>, 1 refs, not reportable multicast link-local <invalid>, 1 refs, not reportable link MTU 1280 (true link MTU 1280) current hop limit 128 reachable time 24000ms (base 30000ms) retransmission interval 1000ms DAD transmits 0 default site prefix length 48 Interface 4: Ethernet: Local Area Connection 2 Guid {E00BA7A0-0BC1-449D-A4AA-CC4811AF119B} uses Neighbor Discovery uses Router Discovery link-layer address: 00-04-61-4b-17-fc preferred global <invalid>, life 4m37s/97s (temporary) preferred global <invalid>, life 4m37s/97s (public) preferred link-local <invalid>, life infinite multicast interface-local <invalid>, 1 refs, not reportable multicast link-local <invalid>, 1 refs, not reportable multicast link-local <invalid>, 2 refs, last reporter multicast link-local <invalid>, 1 refs, last reporter link MTU 1500 (true link MTU 1500) current hop limit 64 reachable time 28500ms (base 30000ms) retransmission interval 1000ms DAD transmits 1 default site prefix length 48 Interface 3: 6to4 Tunneling Pseudo-Interface Guid {A995346E-9F3E-2EDB-47D1-9CC7BA01CD73} does not use Neighbor Discovery does not use Router Discovery routing preference 1 link MTU 1280 (true link MTU 65515) current hop limit 128 reachable time 39500ms (base 30000ms) retransmission interval 1000ms DAD transmits 0 default site prefix length 48 Interface 2: Automatic Tunneling Pseudo-Interface Guid {48FCE3FC-EC30-E50E-F1A7-71172AEEE3AE} does not use Neighbor Discovery does not use Router Discovery routing preference 1 EUI-64 embedded IPv4 address: 0.0.0.0 router link-layer address: 0.0.0.0 link MTU 1280 (true link MTU 65515) current hop limit 128 reachable time 22500ms (base 30000ms) retransmission interval 1000ms DAD transmits 0 default site prefix length 48 Interface 1: Loopback Pseudo-Interface Guid {6BD113CC-5EC2-7638-B953-0B889DA72014} does not use Neighbor Discovery does not use Router Discovery link-layer address: preferred link-local <invalid>, life infinite preferred link-local <invalid>, life infinite link MTU 1500 (true link MTU 4294967295) current hop limit 128 reachable time 26000ms (base 30000ms) retransmission interval 1000ms DAD transmits 0 default site prefix length 48