diff --git a/TP_03/config/ESW1_CPE_LYON_BAT_A.conf b/TP_03/config/ESW1_CPE_LYON_BAT_A.conf
new file mode 100644
index 0000000..383cda8
--- /dev/null
+++ b/TP_03/config/ESW1_CPE_LYON_BAT_A.conf
@@ -0,0 +1,30 @@
+
+vlan 10
+    name teacher
+    exit
+vlan 20
+    name student
+    exit
+
+
+interface fa1/14
+    switchport mode trunk
+    switchport trunk allowed vlan all
+    exit
+
+interface fa1/15
+    switchport mode trunk
+    switchport trunk allowed vlan all
+    exit
+
+interface fa1/1
+    switchport mode access
+    switchport access vlan 10
+    description "port vlan teacher"
+    exit
+
+interface fa1/2
+    switchport mode access
+    switchport access vlan 20
+    description "port vlan student"
+    exit
\ No newline at end of file
diff --git a/TP_03/config/ESW1_CPE_LYON_BAT_B.conf b/TP_03/config/ESW1_CPE_LYON_BAT_B.conf
new file mode 100644
index 0000000..383cda8
--- /dev/null
+++ b/TP_03/config/ESW1_CPE_LYON_BAT_B.conf
@@ -0,0 +1,30 @@
+
+vlan 10
+    name teacher
+    exit
+vlan 20
+    name student
+    exit
+
+
+interface fa1/14
+    switchport mode trunk
+    switchport trunk allowed vlan all
+    exit
+
+interface fa1/15
+    switchport mode trunk
+    switchport trunk allowed vlan all
+    exit
+
+interface fa1/1
+    switchport mode access
+    switchport access vlan 10
+    description "port vlan teacher"
+    exit
+
+interface fa1/2
+    switchport mode access
+    switchport access vlan 20
+    description "port vlan student"
+    exit
\ No newline at end of file
diff --git a/TP_03/config/R1_CPE_LYON_BAT_A.conf b/TP_03/config/R1_CPE_LYON_BAT_A.conf
new file mode 100644
index 0000000..d547690
--- /dev/null
+++ b/TP_03/config/R1_CPE_LYON_BAT_A.conf
@@ -0,0 +1,15 @@
+
+interface g2/0
+    no shutdown
+    exit
+interface g2/0.10
+    encapsulation dot1Q 10
+    description "Gateway for teacher vlan"
+    ip address 172.16.10.253 255.255.255.0
+    exit
+
+interface g2/0.20
+    encapsulation dot1Q 20
+    description "Gateway for student vlan"
+    ip address 172.16.20.253 255.255.255.0
+    exit
diff --git a/TP_03/config/R1_CPE_LYON_BAT_B.conf b/TP_03/config/R1_CPE_LYON_BAT_B.conf
new file mode 100644
index 0000000..3f103a4
--- /dev/null
+++ b/TP_03/config/R1_CPE_LYON_BAT_B.conf
@@ -0,0 +1,18 @@
+
+interface g3/0
+    encapsulation dot1Q 
+    description "**NO DESCRIPTION**"
+    ip address  
+    exit
+
+interface g3/0.10
+    encapsulation dot1Q 10
+    description "Gateway for teacher vlan"
+    ip address 172.16.30.253 255.255.255.0
+    exit
+
+interface g3/0.20
+    encapsulation dot1Q 20
+    description "Gateway for student vlan"
+    ip address 172.16.40.253 255.255.255.0
+    exit
diff --git a/TP_03/config/R2_CPE_LYON_BAT_A.conf b/TP_03/config/R2_CPE_LYON_BAT_A.conf
new file mode 100644
index 0000000..dd14f56
--- /dev/null
+++ b/TP_03/config/R2_CPE_LYON_BAT_A.conf
@@ -0,0 +1,15 @@
+
+interface g2/0
+    no shutdown
+    exit
+interface g2/0.10
+    encapsulation dot1Q 10
+    description "Gateway for teacher vlan"
+    ip address 172.16.10.254 255.255.255.0
+    exit
+
+interface g2/0.20
+    encapsulation dot1Q 20
+    description "Gateway for student vlan"
+    ip address 172.16.20.254 255.255.255.0
+    exit
diff --git a/TP_03/config/R2_CPE_LYON_BAT_B.conf b/TP_03/config/R2_CPE_LYON_BAT_B.conf
new file mode 100644
index 0000000..1421cb3
--- /dev/null
+++ b/TP_03/config/R2_CPE_LYON_BAT_B.conf
@@ -0,0 +1,18 @@
+
+interface g3/0
+    encapsulation dot1Q 
+    description "**NO DESCRIPTION**"
+    ip address  
+    exit
+
+interface g3/0.10
+    encapsulation dot1Q 10
+    description "Gateway for teacher vlan"
+    ip address 172.16.30.254 255.255.255.0
+    exit
+
+interface g3/0.20
+    encapsulation dot1Q 20
+    description "Gateway for student vlan"
+    ip address 172.16.40.254 255.255.255.0
+    exit
diff --git a/TP_03/scripts/create_config.py b/TP_03/scripts/create_config.py
index 462b977..06c5322 100644
--- a/TP_03/scripts/create_config.py
+++ b/TP_03/scripts/create_config.py
@@ -5,41 +5,66 @@ env = Environment(loader=FileSystemLoader("templates"))
 
 
 def load_json_data_from_file(file_path):
-    pass
-
+    with open(file_path) as json_file:
+        data = json.load(json_file)
+    return data
 def render_network_config(template_name, data):
-    pass
+    template = env.get_template(template_name)
+    return template.render(data)
 
 def save_built_config(file_name, data):
-    pass
+    with open(file_name, "w") as f:
+        f.write(data)
+    return file_name
 
 
 def create_config_cpe_lyon_batA():
-    esw3_data = load_json_data_from_file(file_path='data/vlan_ESW3.json')
-    esw3_config = render_network_config(template_name='vlan_switch.j2', data=esw3_data)
+    ESW1_CPE_LYON_BAT_A_data= load_json_data_from_file(file_path='data/ESW1_CPE_LYON_BAT_A.json')
+    ESW1_CPE_LYON_BAT_A_config = render_network_config(template_name='vlan_switch.j2', data=ESW1_CPE_LYON_BAT_A_data)
 
-    R3_data = load_json_data_from_file(file_path='data/vlan_R03.json')
-    R3_config = render_network_config(template_name='vlan_router.j2', data=R3_data)
-    return R3_config,esw3_config
+    R2_LYON_BAT_A_data = load_json_data_from_file(file_path='data/R2_CPE_LYON_BAT_A.json')
+    R2_LYON_BAT_A_config = render_network_config(template_name='vlan_router.j2', data=R2_LYON_BAT_A_data)
+
+    R1_LYON_BAT_A_data = load_json_data_from_file(file_path='data/R1_CPE_LYON_BAT_A.json')
+    R1_LYON_BAT_A_config = render_network_config(template_name='vlan_router.j2', data=R1_LYON_BAT_A_data)
+
+    return {
+        'esw1': ESW1_CPE_LYON_BAT_A_config,
+        'r1': R1_LYON_BAT_A_config,
+        'r2': R2_LYON_BAT_A_config
+    }
 
 def create_config_cpe_lyon_batB():
-    pass
+    ESW1_CPE_LYON_BAT_B_data= load_json_data_from_file(file_path='data/ESW1_CPE_LYON_BAT_B.json')
+    ESW1_CPE_LYON_BAT_B_config = render_network_config(template_name='vlan_switch.j2', data=ESW1_CPE_LYON_BAT_B_data)
+
+    R2_LYON_BAT_B_data = load_json_data_from_file(file_path='data/R2_CPE_LYON_BAT_B.json')
+    R2_LYON_BAT_B_config = render_network_config(template_name='vlan_router.j2', data=R2_LYON_BAT_B_data)
+
+    R1_LYON_BAT_B_data = load_json_data_from_file(file_path='data/R1_CPE_LYON_BAT_B.json')
+    R1_LYON_BAT_B_config = render_network_config(template_name='vlan_router.j2', data=R1_LYON_BAT_B_data)
+
+    return {
+        'esw1': ESW1_CPE_LYON_BAT_B_config,
+        'r1': R1_LYON_BAT_B_config,
+        'r2': R2_LYON_BAT_B_config
+    }
     
 if __name__ == "__main__":
     """
         process question 3 to 5:
     """
     #question 3:
-    #config = create_config_cpe_lyon_batA()
+    config = create_config_cpe_lyon_batA()
 
     #question 4:
-    # save_built_config('config/R1_CPE_LYON_BAT_A.conf', config.get('r1'))
-    # save_built_config('config/R2_CPE_LYON_BAT_A.conf', config.get('r2'))
-    # save_built_config('config/ESW1_CPE_LYON_BAT_A.conf', config.get('esw1'))
+    save_built_config('config/R1_CPE_LYON_BAT_A.conf', config.get('r1'))
+    save_built_config('config/R2_CPE_LYON_BAT_A.conf', config.get('r2'))
+    save_built_config('config/ESW1_CPE_LYON_BAT_A.conf', config.get('esw1'))
 
     #question 5:
-    # config = create_config_cpe_lyon_batB()
-    # save_built_config('config/R1_CPE_LYON_BAT_B.conf', config.get('r1'))
-    # save_built_config('config/R2_CPE_LYON_BAT_B.conf', config.get('r2'))
-    # save_built_config('config/ESW1_CPE_LYON_BAT_B.conf', config.get('esw1'))
+    config = create_config_cpe_lyon_batB()
+    save_built_config('config/R1_CPE_LYON_BAT_B.conf', config.get('r1'))
+    save_built_config('config/R2_CPE_LYON_BAT_B.conf', config.get('r2'))
+    save_built_config('config/ESW1_CPE_LYON_BAT_B.conf', config.get('esw1'))
     
\ No newline at end of file