[nznog] Blackholing rfc1918 queries

Does anyone know the current correct way to blackhole queries for rfc1918 reverses using Bind9? I had a look at as112.net (and 192.0.32.18/31) and googled a bit but I can't seem to find anything. I'm sure somebody was going on about it a year or so back and encouraging everybody to but a certain config in. -- Simon J. Lyall | Very Busy | Web: http://www.darkmere.gen.nz/ "To stay awake all night adds a day to your life" - Stilgar | eMT.