[SOLVED] Need some IPv6 help

[Bemk]

I have a tunnel set up at SixXS, and that is working as it should. I can ping to ipv6.google.com, and stuff like that.

I have recieved a subnet, and have configured radvd accordingly. I set the key in sysctl.conf to:

net.ipv6.conf.default.forwarding = 1

All the network nodes have received and are trying to use their IPv6 address(apart from the Windows systems, but those will follow in time).
I have tried to use the IPv6 connection, but the Ubuntu server machine in between the tunnel and the network refuses to connect the tunnel to the network.

Can anyone help me?

[Bemk]

Found the source of the problem. Ubuntu Server LTS has been configured to block the IPv6 requests by default in the firewall. To solve this one must add a rule allowing traffic in ip6tables.