LinuxQuestions.org - mount to NFS server 'ip addr' failed: server is down.

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mount to NFS server 'ip addr' failed: server is down.

I have been running into this error and not sure how to fix. Any ideas?

[root@pcrl-dev02-db ~]# uname -a
Linux pcrl-dev02-db 2.6.9-5.0.5.ELsmp #1 SMP Tue Apr 19 22:54:25 BST 2005 i686 i686 i386 GNU/Linux

[root@pcrl-dev02-db ~]# mount -o nfsvers=2 -t nfs 192.168.21.203:/u02/Stage11i /mnt/ora_apps_stage/
mount to NFS server '192.168.21.203' failed: server is down.

[root@pcrl-dev02-db ~]# mount -t nfs 192.168.21.203:/u02/Stage11i /mnt/ora_apps_stage/
mount to NFS server '192.168.21.203' failed: server is down.

[root@pcrl-dev02-db ~]#

Thanks in advance.
Tim

Never done anything with NFS, but the message 'Server is down' tells me either there is no NFS server on 192.168.21.203, you do not have the rights to the share, or that you cannot access the share do to a firewall/tcpwrapper blocking access.