I've been looking at different status board tools and the one thing I've always found missing is dual-stack IPv4+IPv6 tests. It'd be nice to be able to see that

I've been looking at different status board tools and the one thing I've always found missing is dual-stack IPv4+IPv6 tests. It'd be nice to be able to see that both protocols to a given port are working as expected. I don't want to write my own, so I'll probably settle on one and try to offer up a PR for dual-ip stack checks. I'll take a look at this one too.