SMB / NetBIOS Connections

["Jonathan R. Dundas" <jonathan () MPCTEXAS COM>]

We see constant connection attempts to port 137 to existing hosts on our
subnet, even though the attempts are denied.  Packets claiming to be from
Private/reserved source addys are a significant portion of them, maybe an
average of 1 host a day tries to connect from a private addy.  Weird.  I've
been reading this list for about two months ago on and off, has this topic
been discussed before?

Jonathan