>> Is there any valid reason why this (or any other) fix hasn't been
>> applied?
> The fix isnt' really a fix and nobody has implemented the right fix
> yet.

Well, it's a fix in that it makes the symptom go away (assuming you're
talking about my patch).

Someone else said something on-list to the effect of "I removed the
cache entirely" (with some - IMO reasonable - justification).  As a
totally bonehead-simple patch to have the same effect with very little
chance of trouble (I haven't tested it), apply my patch, then change

        if ((ipforward_rt.ro_rt == 0) ||
            !in_hosteq(*to, sin->sin_addr) ||
            (ipforward_rt_stamp != time.tv_sec)) {

to

	if (1) {

There.  Now there's a fix.  (Of course, the ipforward_rt stuff could
then go away, but that's more involved and I don't have time right now
to construct the corresponding patch, especially since it'd mean a
test-build of a kernel.)

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