HP 1032 Manual page 46

If there is no packet loss, then NAT is enabled.
DISPLAY Server Interaction Test
References:
3.6.1 Introduction to NAT (Network Address Translation)
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1.3.2 External /home File Server
During the installation, manager_config presents the option to mount a /home directory to all of the node
the cluster. The default is to use /home on the Management Server as the home directory for the cluster. I
alternate mount point is used, it is necessary to perform the following steps before starting the
"Invoke /opt/clusterpack/bin/manager_config on Management Server" step:
If it is not already setup, configure the file server to export the directory you intend to
mount as /home.
Connect the file server to the ProCurve 5308xl switch. The file server's connection to the
switch should use the same subnet mask as the rest of the Compute Nodes. This may
require adding and/or configuring an addition network card on the file server.
When manager_config prompts you for the mount location of /home, use the IP address of
the file server that is accessible to the ProCurve 5308xl switch.
References:
Step 8 Copy the License Files to the Management Server
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1.3.3 Adding Head Nodes to an ClusterPack cluster
1. On the Compute Node, set the DISPLAY variable to a display server
that is not part of the cluster, for instance your local desktop.
% setenv DISPLAY 15.99.22.42:0.0 (if it is csh)
2. Try to bring up an xterm on the DISPLAY server:
% xterm &
If the xterm is brought up in the DISPLAY server, then NAT is
enabled.