Hi Everyone,
I'm using HE's IP6 Tunnel broker service. I'm trying to use a Ubuntu box
as a router. I've set up the tunnel (which connects to HE's server via
IPv4).
Everything does work when I don't have any iptables rules. However, I
don't wish to leave the box open.
For some reason, forwarding of packets (from HE WAN to the other side of
my router) only works when I have my ip6tables INPUT chain to ACCEPT.
Even when putting in a state RELATED,ESTABLISHED in there doesn't work.
Does anyone have any ideas why this is the case? I have a funny feeling
it has something to do with NDP and ip6tables not marking something as
"related".
Thanks
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