Does anyone know what ports need to be opened if you have a Firewall between a Linux Server and a netapp Filer.
Port 111, for the ONC RPC portmapper.
Port 2049, for NFS.
Whatever port happens to be used by the mount daemon, for mounting.
Whatever ports happen to be used by the lock manager and status monitor, for file locking.
Whatever port is used by the quota daemon, for the "quota" command.
Note that the mount daemon, lock manager, status monitor, and quota daemon are *NOT* assigned fixed port numbers; there's no guarantee that they will be assigned the same port numbers every time an NFS server starts offering NFS service after, say, a reboot.
(Yes, this might render a firewall between an NFS client and an NFS server unusable; so it goes....)