[ih] Some Questions over IPv4 Ownership

[Ben Clifford]

> Pure serendipity. The basic mechanism used (the bit-mask) allowed
> non-continguous masks as a natural consequence of the mechanism; we would
> have had to specifically disallow them, and we didn't bother to. I seem to
> recall we thought we'd leave them in, and see if people found some good use
> for them.

did anyone find a good use for them?

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