IPv6-Only Ubuntu 10.04 LTS

To load eth0 on start-up without a configured IPv4 address /etc/network/interfaces:


auto eth0
iface eth0 inet manual
up ifconfig eth0 up
# iface eth0 inet dhcp


For the Google IPv6 public DNS servers add to /etc/resolv.conf:


domain localdomain
search google.com
nameserver 2001:4860:4860::8888
nameserver 2001:4860:4860::8844