new Bind exploit?

[Jeff Macdonald]

Today my logwatch sent me a message with hundreds of lines like these:

   lame server resolving '100.0.0.215.in-addr.arpa' (in '215.in-addr.arpa'?): 199.252.154.251#53: 1 Time(s)
   lame server resolving '100.0.0.215.in-addr.arpa' (in '215.in-addr.arpa'?): 199.252.162.251#53: 1 Time(s)
   lame server resolving '100.0.0.215.in-addr.arpa' (in '215.in-addr.arpa'?): 199.252.180.251#53: 1 Time(s)
   lame server resolving '100.0.0.215.in-addr.arpa' (in '215.in-addr.arpa'?): 207.132.116.60#53: 1 Time(s)


Has anyone see something like this? All of the in-addr.arp addresses
have x.0.0.y.