Yeah. It could be problematic. Then again, 6to4/6in4 tunneling is fairly straightforward: https://en.wikipedia.org/wiki/List_of_IPv6_tunnelbrokers https://en.wi

Yeah. It could be problematic. Then again, 6to4/6in4 tunneling is fairly straightforward: https://en.wikipedia.org/wiki/List_of_IPv6_tunnelbrokers https://en.wikipedia.org/wiki/List_of_IPv6_tunnelbrokers. Binding to a backup IPv4 port is another option.