I wasn't aware of that, thanks. However, that still doesn't work for me.
This is what I have on NetApp now:
FAS> exportfs -v /vol/NFS_WEB -sec=sys,rw=10.10.0.149:10.10.0.147,nosuid
On the client, if I try to write as root, it's squashed (root_squash is invoked I suspect):
# touch /mnt/netapp_nfs/root
# ls -l /mnt/netapp_nfs/root -rw-r--r--. 1 nfsnobody nfsnobody 0 Jul 15 13:08 /mnt/netapp_nfs/root
However, my regular user still has no access:
# su - test
$ touch /mnt/netapp_nfs/newtest touch: cannot touch `/mnt/netapp_nfs/newtest': Permission denied
This implies that all_squash doesn't work (but root_squash does).