Re: (tye)Re: converting complex netrange to cidr notation

[MeowChow]

Another interesting variant of this problem would be to find the minimal set of IP's + netmasks that cover a given range... hmm, I think a Golf outing is coming on :)

update: Actually, I think these are equivalent problems, so never mind, probably.

   MeowChow                                   
               s aamecha.s a..a\u$&owag.print

[tye]

For a single range, the above solution is the minimal one even if you allow arbitrary masks (though I haven't rigorously proved that -- just supporting your suspicion). If you allow multiple ranges, then the problem gets much harder and it becomes possible for arbitrary masks to provide smaller solutions.

        - tye (but my friends call me "Tye")

[dino]

As a footnote I checked the above against
http://www.csc.fi/english/funet/calc/laskin2.html
The results agree ;-)
tbfn
Dino