In the Windows ODBC program, now I get
"[MySQL][ODBC 3.51 Driver]Host '172.16.100.108' is not allowed to
connect to this MySQL server"
instead of (what I originally got)
"MySQL][ODBC 3.51 Driver]Can't connect to MySQL server on
'172.16.100.200' (10065)"
I'm guessing that "not allowed" is a permissions issue or
something...or perhaps something like tcp/ip isn't enabled?
An update to the problem. "netstat" shows that the port isn't even
listening, so it's most likely a TCP/IP problem. Joel suggested that
my.cnf wasn't properly configured, so I'm looking at some examples.