foreach my $host (@{$hashRef->{hostArray}}){
        
        printf "Starting SNMP bulkwalk for %s\n", $host if($DEBUG);
        
        $hashRef->{config}->{DestHost} = $host;
        
        my $session = SNMP::Session->new( %{$hashRef->{config}} );
        
        die("No session\n") if(!$session);
        $session->bulkwalk($hashRef->{snmpSingle}, $hashRef->{snmpBulk}, $hashRef->{varList}, [\&snmpCallback, $session, $host, \$arraySize, \%snmpData]);
    }

    print "Just before Main Loop\n";
    SNMP::MainLoop();