So, this evening I checked out the pool in my development. Pretty nice. It looks like it's about 25 yards, too ...
But, instead of actually going into the pool, I sat in a lounge chair did some reading on OSPF, and learned that my previous posts ranting about OpenVPN and Quagga were actually not problems. It's expected behavior for point-to-point OSPF connections to be convoluted (messed-up) and completely non-intuitive. Also, OSPFv3 exhibits the expected behavior on point-to-point links, which is why my OSPFv3 stuff was working properly, excepting obvious Quagga bugs.