Bad referral

[Wayne Vigeant]

We're running Bind 8.2.1 and starting to see at least one or two
bad referral messages a day in our log files. Here's a sample:
Sep 29 15:19:57 ns1 named[32521]: bad referral (com !< msnbc.COM)
Sep 29 20:57:29 ns1 named[32521]: bad referral (dec.com !< bb.DEC.COM)
Sep 29 21:11:44 ns1 named[32521]: bad referral (net !< GTLD-SERVERS.net)
Is there some way to find out what causes these or figure out where they
are coming from?

Thanks,
Wayne