diff --git a/bin/killof.pl b/bin/killof.pl
index 04522a2..1d89eed 100755
--- a/bin/killof.pl
+++ b/bin/killof.pl
@@ -2,8 +2,6 @@
 
 use strict;
 
-my $OPENFLOW_DIR='~/openflow-v0.1.7';
-
 sub trim($)
 {
 	my $string = shift;
@@ -24,10 +22,10 @@ print "tearing down interfaces and datapaths\n";
 
 # cleanup by deleting data paths, removing kmod, and killing controller
 # should really make this smarter, but ah well
+`dpctl delif 0 eth1`;
 `dpctl delif 0 eth2`;
 `dpctl delif 0 eth3`;
 `dpctl delif 0 eth4`;
-`dpctl delif 0 eth5`;
 `dpctl deldp 0`;
 
 my $of_kmod_removed = `rmmod openflow_mod`;
diff --git a/projects/learning_switch/regress/common/setup b/projects/learning_switch/regress/common/setup
index 34b1c62..5e57eb5 100755
--- a/projects/learning_switch/regress/common/setup
+++ b/projects/learning_switch/regress/common/setup
@@ -1,10 +1,13 @@
 #!/usr/bin/perl
 
 sub setup {        
-	# check that we're root?        
-	#      if ($EUID == 0) {        
-	# eventually should add byte counters        
-	# verify kernel module not loaded        
+	# ensure all interfaces use an address
+	for (my $i = 1; $i <= 8; $i++) {	
+		`/sbin/ifconfig eth$i 192.168.$i.1`;
+	}
+
+	# verify kernel module not loaded
+        
 	my $of_kmod_loaded = `lsmod | grep openflow_mod`;        
 	if ($of_kmod_loaded eq "") {                
 		print "loading kernel module\n";        
@@ -30,10 +33,10 @@ sub setup {
         # create openflow switch on four ports
         `insmod ${openflow_dir}/datapath/linux-2.6/openflow_mod.ko`;
         `dpctl adddp 0`;
+        `dpctl addif 0 eth1`;
         `dpctl addif 0 eth2`;
         `dpctl addif 0 eth3`;
         `dpctl addif 0 eth4`;
-        `dpctl addif 0 eth5`;
 }
 
 setup();
diff --git a/projects/learning_switch/regress/test_unicast_unknown/run.pl b/projects/learning_switch/regress/test_unicast_unknown/run.pl
index 5242c1c..5cb5d22 100755
--- a/projects/learning_switch/regress/test_unicast_unknown/run.pl
+++ b/projects/learning_switch/regress/test_unicast_unknown/run.pl
@@ -8,7 +8,7 @@ use IO::Socket;
 use strict;
 
 # sending/receiving interfaces - NOT OpenFlow ones
-my @interfaces = ("eth6", "eth7", "eth8", "eth9");
+my @interfaces = ("eth5", "eth6", "eth7", "eth8");
 
 my (%init_counters, %final_counters, %delta);
 
@@ -49,10 +49,10 @@ else {
 		# send one packet; controller should learn MAC, add a flow 
 		#  entry, and send this packet out the other interfaces
 		print "Sending now: \n";
-		send_and_count('eth6', $pkt->packed, \%delta);
+		send_and_count('eth5', $pkt->packed, \%delta);
+                expect_and_count('eth6', $pkt->packed, \%delta);
                 expect_and_count('eth7', $pkt->packed, \%delta);
                 expect_and_count('eth8', $pkt->packed, \%delta);
-                expect_and_count('eth9', $pkt->packed, \%delta);
 
 		# sleep as long as needed for the test to finish
 		sleep 0.5;