[bitfolk] Re-enabling IPv6

I recently reinstalled the OS on my server (due to a lot of misconfiguration, I thought it would be easiest to start again) following the guide on the wiki: https://tools.bitfolk.com/wiki/Using_the_self-serve_net_installer It installed correctly, and now I am working through the "Things you might like to change after install" part. I set up the cacher and NTP but I am completely stumped on IPv6. According to "ifconfig" IPv6 is there (I have an inet6 address) so I tried to ping6 ipv6.google.com and it failed as i suspected. The next thing I tried was just adding my settings to /etc/network/interfaces: iface eth0 inet6 static pre-up modprobe ipv6 # Perhaps you will only use this one for web serving address fe80::216:5eff:fe00:1e5 netmask 64 gateway 2001:ba8:1f1:f004::1 but that didn't work either...does anybody have any idea how I can enable v6? Thank you! Daniel