diff --git a/tcpdump_tools/tcpdump_sum.pl b/tcpdump_tools/tcpdump_sum.pl
index cf7d6fb..edf38d0 100755
--- a/tcpdump_tools/tcpdump_sum.pl
+++ b/tcpdump_tools/tcpdump_sum.pl
@@ -4,7 +4,7 @@
 
 sub dumpstats {
     print "-" x 60, "\n";
-    print "$time\n";
+    print "$time_last\n";
     for $i (sort { $sum{$a} <=> $sum{$b} } keys (%sum)) {
 	printf("\t%6d %s\n", $sum{$i}, $i);
     }
diff --git a/tcpdump_tools/tcpdump_sum2.pl b/tcpdump_tools/tcpdump_sum2.pl
new file mode 100755
index 0000000..a52210b
--- /dev/null
+++ b/tcpdump_tools/tcpdump_sum2.pl
@@ -0,0 +1,54 @@
+#!/usr/bin/perl
+
+# print summary of tcpdump output
+
+sub dumpstats {
+    print "-" x 60, "\n";
+    print "$time_last\n";
+    for $i (sort { $sum{$a} <=> $sum{$b} } keys (%sum)) {
+	printf("\t%6d %s\n", $sum{$i}, $i);
+    }
+}
+
+$maxsecs = 0;
+$minsecs = 86400;
+
+while (<>) {
+    if (m/^(\d\d:\d\d:\d\d)\.\d{6} ([-\w\.]+) \> ([-\w\.]+): (.*)/) {
+	$time = $1;
+	$from = $2;
+	$to = $3;
+	$rest = $4;
+	@t = split(/:/, $time);
+	$secs = $t[0] * 3600 + $t[1] * 60 + $t[2];
+	if ($secs < $minsecs) {$minsecs = $secs}
+	if ($secs > $maxsecs) {$maxsecs = $secs}
+
+	if ($rest =~ m/^. (\d+):(\d+)\((\d+)\)/) {
+	    # tcp
+	    $con = "$from > $to";
+	    $tsum{$con} += $3;
+	    if (!$sum{$con}) {
+		$sum{$con} = [];
+	    }
+	    $sum{$con}->[$secs] += $3;
+		
+
+	} elsif ($rest =~ m/^. ack (\d+) win (\d+) \(DF\)/) {
+	    # tcp ack 
+	} else {
+	    #print stderr "unparseable2: $_";
+	}
+	    
+	    
+    } else {
+	#print stderr "unparseable1: $_";
+    }
+}
+
+for $c ((sort {$tsum{$b} <=> $tsum{$a}} keys %tsum)[0..9]) {
+    print "# ", $c, " ", $tsum{$c}, "\n";
+    for ($s = $minsecs; $s <= $maxsecs; $s++) {
+	print $c, "\t", $s, "\t", $sum{$c}->[$s] + 0, "\n";
+    }
+}