To correctly perform this file-name mapping, one of the following must be true:
The mount command is used to statically mount file systems. These types of static mounts are typically configured in a file such as /etc/checklist, /etc/mnttab, or /etc/filesystems.
For file-name mapping to work correctly between systems, file system mounts must use consistent host names. If a host is known by several names (for example, aliases, or if the host has more than one LAN address that are known by different names), you must use the same name and form of the name for all mounts.
Or, the automounter is used to mount file systems at the default /net mount point.
Or, the automounter is used to mount file systems at a location other than /net and the DTMOUNTPOINT environment variable is set to indicate the mount point. See the next section, Setting a Value for DTMOUNTPOINT.
For information about the automounter, see the automount(1M) man page.