[ubuntu] No ipv6 ip from ISP

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http://ubuntuforums.org – I have Ubuntu 10.10 installed on my laptop. My ISP natively support ipv6, but since last weekend, I do not get an ipv6 ip. When I use a live cd however, I do get an ipv6 ip. For as far as I can see, all settings (/etc/network/interface and the settings in network manager) are exactly the same. Output of ifconfig: Code: eth0      Link encap:Ethernet  HWaddr XX:XX:XX:XX:XX:XX            inet addr:XXX.XXX.XXX.XXX  Bcast:XXX.XXX.XXX.XXX  Mask:XXX.XXX.XXX.XXX           inet6 addr: XXXX::XXXX:XXXX:XXXX:XXXX/64 (HowTos)