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Because the file is in an open format it should be recognized by your virtualization software or by a conversion tool provided by your virtualization software.  

VMware

I will cover two options for VMware software.  Both of these options require the VMware OVF Tool, see here for some links or hit up google or vmware's site.  From now on I'll assume you have it installed and know where it is

Convert OVF to VMX

mkdir NMIS8
ovftool NMIS8-OVF/NMIS8.ovf NMIS8/NMIS8.vmx 

You should now be able to import/load the vmx file with your VMware software and skip to step 3.

Transfer OVF to ESXi

ovftool --name="NMIS" -dm="thin" -ds=datastore_number ./NMIS8-OVF/NMIS8.ovf vi://user:password@host_ip_address

Remember to set the name you like, the datastore you want and point it at the server you want to deploy to

VirtualBox

VirtualBox will import directly from an OVF file so you can just fire up VirtualBox and select "Import Appliance..."

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Now set the IP, netmask, gateway, and DNS if you like ( to add DNS you can add two lines, one for each server: DNS1=ip , DNS2=ip)

Alternately

You could also install a text based UI to help you:

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opfixperms.pl Version 1.0
Copyright (C) 2012 Opmantek Limited (www.opmantek.com)
This program comes with ABSOLUTELY NO WARRANTY;
See www.opmantek.com or email contact@opmantek.com
This script will fix the permissions for Opmantek based on the configuration /usr/local/opmantek/bin/../conf/opCommon.nmis
The directory to be processed is: /usr/local/opmantek
The user will be set to: nmis
The group will be set to: nmis

Now let's get started! 

Opening a module

There are two ways to open the modules, by using the drop-down in the NMIS page (make sure you do not have pop-up's blocked for this page):

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http://vm_ip_address/cgi-omk/opFlow.pl

Getting a trial license

opFlow, opMaps and opReports will present you with a page that looks like the following when not registered:

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And you're Done!  The next step is to make sure the configuration for the module you activated is correct & complete.

opFlow Configuration

Mongo

The first step to get opFlow working is to start the mongo database.  The VM already has mongo installed and all the scripts are ready to go, first we will add the mongo script to the VM's startup routine, and then we will start the daemon.

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Note: the first time you start mongo it may take a while to return to the command prompt, don't worry about it, just let mongo run and it will eventually come back, if it doesn't CTRL+C and start it again.

Flowd

flowd should be running, but to be sure we will take the same steps as we did with mongo.

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Starting flowd: bind: Address already in use
Listener setup of [0.0.0.0]:12345 failed

opFlowd

opflowd also needs the same treatment:

chkconfig opflowd on
service opflowd start

Configure your Cisco Router

For reference: http://www.cisco.com/en/US/docs/ios/12_3t/netflow/command/reference/nfl_a1gt_ps5207_TSD_Products_Command_Reference_Chapter.html#wp1160995

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ip flow-cache timeout active 1

Run setup script

./opflow_setup.pl setup=all

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