I finally got around to installing it, and it installed easy -- even for me 
-- and appears to work well.  (Uses ipchains, rather than iptables.)

No way of knowing, of course, but everything on the local net can see 
everything it's supposed to, and as far as I can tell, via Steve Gibson's 
Shields Up, the only thing that's visibile from the outside is port 5000, 
which appears to be closed.  
-- 
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There's a widow in sleepy Chester
  Who weeps for her only son;
There's a grave on the Pabeng River,
  A grave that the Burmans shun,
And there's Subadar Prag Tewarri
  Who tells how the work was done.
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