Firewall should (optionally) allow IP protocol 41
Adding firewall support for IP protocol 41 (IPv6 encapsulation in IPv4) would allow "sort-of-IPv6" communication without as much work as full IPv6 support.
Issue #8 (IPv6 support) is probably much harder; I suggest protocol-41 support could be a good halfway house.
If native IPv6 support can be added, this would not be needed. (Although other people might want per-protocol control in the firewall for other reasons e.g. SCTP?)
I think it would be perfectly reasonable to have a simple yes/no rule for non-TCP/UDP protocols; I presume anyone turning them on would be able to apply any needed fine-grained control at the instance level.
any update please?