We are moving from Netware 6.0 DNS to MS DNS (don't ask why).

The entries are identical (as can be), but when we remove the Novell servers from the DNS entries on a Windows 2003 SQL server, there are issues connecting to some databases. With at least one Netware server, it works fine.

Adding a network protocol marker to the server name (np:) caused the connection to work. This was not required before and the default when not listed is (tcp:).

So what is the difference that MS DNS requires this, but Netware 6.0 DNS does not?