sub parse_config {

	foreach $firstOpt ( keys %config ) {
		if ( $firstOpt ne 'General' ) {
			foreach $secondOpt ( keys %{ $config{$firstOpt} } ) {
				if ( $secondOpt eq 'bpfCode' ) {
					$bpfCode = $config{$firstOpt}->{$secondOpt};
				}
				elsif ( $secondOpt eq 'fileName' ) {
					$fileName = $config{$firstOpt}->{$secondOpt};
				}
				elsif ( $secondOpt eq 'ifName' ) {
					$ifName = $config{$firstOpt}->{$secondOpt};
				}
			}
			dump_traff();
		}
		print "n";
	}
}



sub dump_traff {
	
	print `tcpdump -i $ifName -p -C $fileSize -s $snapLen -w /mnt/ramdisk/$fileName $bpfCode &`;
	
}