aix, nfs insecurity and vmount

if you're on an aix box and see this when you're trying to do a mount from your nice linux server:
"vmount: Operation not permitted."

all is not lost.

"but, i set that export as insecure because that pesky firewall sometimes munges
things," you might say.
that setting is: insecure (within the parens in exports)

whatever. ibm says:

AIX versions 4.x and 5.x
Sometimes Linux NFS servers will do port checking and require that 
the NFS client use a reserved port.

     nfso -o nfs_use_reserved_ports=1

If the mount is going to be permanent, then the change needs to survive across a
 reboot. The nfs option must be changed permanently. On AIX 4.x and 5.1, the 
command above should be added to the startup scripts (possibly /etc/rc.nfs). On AIX 
5.2 and above, the change can be made permanent by adding the -p flag.

     nfso -p -o nfs_use_reserved_ports=1

yeah, that works.