diff --git a/CustomerExample/CertusNet.py b/CustomerExample/CertusNet.py
old mode 100644
new mode 100755
index 7f44b48..a750f60
--- a/CustomerExample/CertusNet.py
+++ b/CustomerExample/CertusNet.py
@@ -21,7 +21,10 @@
 
 
 class case1(base_tests.SimpleDataPlane):
-
+    """
+    packet come from port 1 (DIP=192.168.1.100 and DMAC=00:00:00:00:00:10, VLAN=100), 
+    forward to port 2 untag
+    """
     def runTest(self):
         ports = sorted(config["port_map"].keys())
 
@@ -171,4 +174,148 @@
         verify_no_packet(self, parsed_pkt, out_port)
         
         verify_no_other_packets(self)  
-        
\ No newline at end of file
+        
+
+class case2(base_tests.SimpleDataPlane):
+    """
+    packet come from port 1 (SIP=192.168.1.100 and SMAC=00:00:00:00:00:20, VLAN=200, TCP), 
+    forward to port 2 VLAN 300
+    """
+    def runTest(self):
+        ports = sorted(config["port_map"].keys())
+
+        delete_all_flows(self.controller)
+        delete_all_groups(self.controller)    
+
+        #l2-interface-grup_port1_vlann200_untag
+        grouptype = 0
+        vlanid = 200
+        of_port=1
+        group_id = of_port + (vlanid << 16) + (grouptype << 28)
+        actions = [
+            ofp.action.pop_vlan(),
+            ofp.action.output(of_port),
+        ]
+        buckets = [
+            ofp.bucket(actions=actions),
+        ]
+        request = ofp.message.group_add(
+            group_type=ofp.OFPGT_INDIRECT,
+            group_id=group_id,
+            buckets=buckets
+        )
+        self.controller.message_send(request) 
+        #l2-interface-grup_port2_vlann300
+        grouptype = 0
+        vlanid = 300
+        of_port=2
+        group_id = of_port + (vlanid << 16) + (grouptype << 28)
+        actions = [
+            ofp.action.output(of_port),
+        ]
+        buckets = [
+            ofp.bucket(actions=actions),
+        ]
+        request = ofp.message.group_add(
+            group_type=ofp.OFPGT_INDIRECT,
+            group_id=group_id,
+            buckets=buckets
+        )
+        self.controller.message_send(request)     
+
+        #rewrite_group_vlan_200_to_300, use l2-interface-grup_port2_vlann300 group_id
+        grouptype = 1
+        vlanid = 300
+        rw_group_id = 2 + (grouptype << 28)
+        
+        action=[]
+        action.append(ofp.action.set_field(ofp.oxm.vlan_vid(vlanid)))
+        action.append(ofp.action.group(group_id))        
+        buckets = [ofp.bucket(actions=action)]   
+        request = ofp.message.group_add(
+            group_type=ofp.OFPGT_INDIRECT,
+            group_id=rw_group_id,
+            buckets=buckets
+        )
+        self.controller.message_send(request)     
+                
+        #10_add_port1_allow_rx_tag_vid_200
+        match = ofp.match()
+        of_port=1
+        vlanid=200
+        match.oxm_list.append(ofp.oxm.in_port(of_port))
+        match.oxm_list.append(ofp.oxm.vlan_vid(0x1000|vlanid))
+        request = ofp.message.flow_add(
+            table_id=10,
+            cookie=42,
+            match=match,
+            instructions=[
+              ofp.instruction.goto_table(20)
+            ],
+            priority=0)
+        logging.info("Set vlan-1 tagged on port %d, and goto table 20" % of_port)
+        self.controller.message_send(request)
+        
+       
+        #60_acl
+        grouptype = 1
+        vlanid = 200
+        rw_group_id = 2 + (grouptype << 28)
+        match = ofp.match()
+        match.oxm_list.append(ofp.oxm.in_port(1))
+        match.oxm_list.append(ofp.oxm.eth_src([0x00, 0x00, 0x00, 0x00, 0x00, 0x20]))
+        match.oxm_list.append(ofp.oxm.vlan_vid(vlanid))
+        match.oxm_list.append(ofp.oxm.eth_type(0x0800))        
+        match.oxm_list.append(ofp.oxm.ipv4_src(0xc0a80164))
+        match.oxm_list.append(ofp.oxm.ip_proto(6))
+        
+        request = ofp.message.flow_add(
+                table_id=60,
+                cookie=42,
+                match=match,
+                instructions=[
+                    ofp.instruction.apply_actions(
+                        actions=[
+                            ofp.action.group(rw_group_id)])
+                    ],
+                buffer_id=ofp.OFP_NO_BUFFER,
+                priority=1000)
+
+        self.controller.message_send(request)
+        do_barrier(self.controller)        
+
+        #send packet on port 1
+        in_port=1
+        out_port=2
+        parsed_pkt = simple_tcp_packet(pktlen=104, 
+                                       eth_src='00:00:00:00:00:20', 
+                                       dl_vlan_enable=True,
+                                       vlan_vid=200,
+                                       ip_src='192.168.1.100')
+        pkt = str(parsed_pkt)
+        logging.info("Send packet on port %d, out port %d", in_port, out_port)
+        self.dataplane.send(in_port, pkt)
+        #construct verify packet content
+        parsed_pkt = simple_tcp_packet(pktlen=104, 
+                                       eth_src='00:00:00:00:00:20', 
+                                       dl_vlan_enable=True,
+                                       vlan_vid=300,                                       
+                                       ip_src='192.168.1.100')
+        verify_packet(self, parsed_pkt, out_port)
+        
+        verify_no_other_packets(self)   
+
+        #send packet on port 1, again but diff SRC IP
+        in_port=1
+        out_port=2
+        parsed_pkt = simple_tcp_packet(pktlen=104, 
+                                       eth_src='00:00:00:00:00:20', 
+                                       dl_vlan_enable=True,
+                                       vlan_vid=100,
+                                       ip_src='192.168.1.200')
+        pkt = str(parsed_pkt)
+        logging.info("Send packet on port %d, out port %d", in_port, out_port)
+        self.dataplane.send(in_port, pkt)
+        verify_no_packet(self, pkt, out_port)
+        
+        verify_no_other_packets(self)         
\ No newline at end of file