diff --git a/2ano/1semestre/rc1/pratica03/Guide 3 - VLANs.pdf b/2ano/1semestre/rc1/pratica03/Guide 3 - VLANs.pdf
new file mode 100644
index 0000000..3a4eabf
Binary files /dev/null and b/2ano/1semestre/rc1/pratica03/Guide 3 - VLANs.pdf differ
diff --git a/2ano/1semestre/rc1/pratica03/pratica03.md b/2ano/1semestre/rc1/pratica03/pratica03.md
new file mode 100644
index 0000000..1374975
--- /dev/null
+++ b/2ano/1semestre/rc1/pratica03/pratica03.md
@@ -0,0 +1,101 @@
+# Guide 3
+
+## Ex 1.5
+
+|Ping from:|Ping to:|Connectivity|Packets (PC1-Switch1 link)|Packets (PC3-Switch1 link)|
+|:-------:|:------------:|:---:|:----:|:---------:|
+| PC2     | Switch1      | No  | ARP  | N/A       |
+| PC2     | PC3          | No  | ARP  | N/A       |
+| PC2     | 192.168.1.34 | No  | ARP  | N/A       |
+| PC3     | Switch1      | Yes | N/A  | ARP, ICMP |
+| PC3     | PC2          | No  | N/A  | ARP       |
+| PC3     | 192.168.1.34 | No  | N/A  | ARP       |
+| Switch1 | PC3          | Yes | N/A  | ICMP      |
+| Switch1 | 192.168.1.34 | No  | N/A  | ARP       |
+
+PCs from different vlans are unable to communicate since the switch is unable to make the connection between vlans. Neither PC1 nor PC2 can communicate with Switch1.
+
+- **PC2 → Switch1**
+	- There's no connectivity because PC2's vlan has no configured IP;
+- **PC2 → PC3**
+	- There's no connectivity because they are in different vlans;
+- **PC2 → 192.168.1.34**
+	- There's no connectivity because the IP doesn't exist;
+- **PC3 → Switch1**
+	- There's connectivity because they are in the same vlan;
+- **PC3 → PC2**
+	- There's no connectivity because they are in different vlans;
+- **PC3 → 192.168.1.34**
+	- There's no connectivity because the IP doesn't exist;
+- **Switch1 → PC3**
+	- There's connectivity because they are in the same vlan;
+- **Switch1 → 192.168.1.34**
+	- There's no connectivity because the IP doesn't exist;
+
+ARP packets occur in every new communication in the same link. ICMP packets only occur when there is connectivity through the link.
+
+---
+
+## Ex 2.2
+
+|Ping from:|Ping to: |Connectivity|Filtered Packets|
+|:--------:|:-------:|:----------:|:--------------:|
+| PC1      | Switch1 | Yes        | N/A            |
+| PC1      | Switch2 | Yes        | ARP, ICMP      |
+| PC1      | PC2     | No         | ARP            |
+| PC1      | PC3     | No         | ARP            |
+| PC2      | Switch1 | No         | ARP            |
+| PC2      | Switch2 | No         | ARP            |
+| PC2      | PC2     | Yes        | N/A            |
+| PC2      | PC3     | Yes        | ARP, ICMP      |
+
+- PC1 → Switch1
+	- There's connectivity because they are in the same vlan;
+- PC1 → Switch2
+	- There's connectivity because they are in the same vlan;
+- PC1 → PC2
+	- There's no connectivity because they are in different vlans;
+- PC1 → PC3
+	- There's no connectivity because they are in different vlans;
+- PC2 → Switch1
+	- There's no connectivity because they are in different vlans;
+- PC2 → Switch2
+	- There's no connectivity because they are in different vlans;
+- PC2 → PC2
+	- There's connectivity because it's connecting with itself;
+- PC2 → PC3
+	- There's connectivity because they are in the same vlan;
+
+The appearances of packets in this case is similar to the ones in Ex 1.5.
+
+---
+
+## Ex 3.5
+
+|Ping from:|Ping to:     |Connectivity|Filtered Packets|
+|:--------:|:-----------:|:----------:|:---------:|
+| PC4      | Switch4     | No         | ARP       |
+| PC4      | Router      | Yes        | ARP, ICMP |
+| PC4      | PC5         | Yes        | ARP, ICMP |
+| PC4      | 192.1.1.100 | No         | ICMP      |
+| PC5      | Switch4     | No         | ARP, ICMP |
+| PC5      | Router      | Yes        | IMCP      |
+| PC5      | PC4         | Yes        | ICMP      |
+| PC5      | 192.1.1.100 | No         | ICMP      |
+
+- PC4 → Switch4
+	- There's no connectivity because they are in different vlans and there are no valid routes between them;
+- PC4 → Router
+	- There's connectivity because there's a valid route between them;
+- PC4 → PC5
+	- There's connectivity because, even though they are in different vlans, there's a valid route through the router
+- PC4 → 192.1.1.100
+	- There's no connectivity because the destination doesn't exist;
+- PC5 → Switch4
+	- There's no connectivity because they are in different vlans and there are no valid paths between them;
+- PC5 → Router
+	- There's connectivity because there's a valid route between them;
+- PC5 → PC4
+	- There's connectivity because, even though they are in different vlans, there's a valid route through the router
+- PC5 → 192.1.1.100
+	- There's no connectivity because the destination doesn't exist;
\ No newline at end of file
diff --git a/2ano/1semestre/rc1/pratica03/pratica03.pdf b/2ano/1semestre/rc1/pratica03/pratica03.pdf
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diff --git a/2ano/1semestre/rc1/pratica03/pratica03/pratica03.gns3 b/2ano/1semestre/rc1/pratica03/pratica03/pratica03.gns3
new file mode 100644
index 0000000..53fda19
--- /dev/null
+++ b/2ano/1semestre/rc1/pratica03/pratica03/pratica03.gns3
@@ -0,0 +1,269 @@
+{
+    "auto_close": true,
+    "auto_open": false,
+    "auto_start": false,
+    "drawing_grid_size": 25,
+    "grid_size": 75,
+    "name": "pratica03",
+    "project_id": "bfe610b2-307c-40b5-ae6b-2f1a826f6053",
+    "revision": 9,
+    "scene_height": 1000,
+    "scene_width": 2000,
+    "show_grid": false,
+    "show_interface_labels": false,
+    "show_layers": false,
+    "snap_to_grid": false,
+    "supplier": null,
+    "topology": {
+        "computes": [],
+        "drawings": [],
+        "links": [
+            {
+                "filters": {},
+                "link_id": "8c5c6db7-fe92-4a75-b947-88ce1a3d455e",
+                "link_style": {},
+                "nodes": [
+                    {
+                        "adapter_number": 0,
+                        "label": {
+                            "rotation": 0,
+                            "style": "font-family: TypeWriter;font-size: 10.0;font-weight: bold;fill: #000000;fill-opacity: 1.0;",
+                            "text": "e0",
+                            "x": 70,
+                            "y": -2
+                        },
+                        "node_id": "e75bd712-2fa5-4a9f-9934-fe88d77be907",
+                        "port_number": 0
+                    },
+                    {
+                        "adapter_number": 1,
+                        "label": {
+                            "rotation": 0,
+                            "style": "font-family: TypeWriter;font-size: 10.0;font-weight: bold;fill: #000000;fill-opacity: 1.0;",
+                            "text": "f1/5",
+                            "x": -4,
+                            "y": 49
+                        },
+                        "node_id": "bc0b3af5-504e-4310-aa34-384f1bc2f6a7",
+                        "port_number": 5
+                    }
+                ],
+                "suspend": false
+            },
+            {
+                "filters": {},
+                "link_id": "c9a7a288-ac59-40d1-a4ed-75d17ffab52d",
+                "link_style": {},
+                "nodes": [
+                    {
+                        "adapter_number": 1,
+                        "label": {
+                            "rotation": 0,
+                            "style": "font-family: TypeWriter;font-size: 10.0;font-weight: bold;fill: #000000;fill-opacity: 1.0;",
+                            "text": "f1/6",
+                            "x": 25,
+                            "y": 63
+                        },
+                        "node_id": "bc0b3af5-504e-4310-aa34-384f1bc2f6a7",
+                        "port_number": 6
+                    },
+                    {
+                        "adapter_number": 0,
+                        "label": {
+                            "rotation": 0,
+                            "style": "font-family: TypeWriter;font-size: 10.0;font-weight: bold;fill: #000000;fill-opacity: 1.0;",
+                            "text": "e0",
+                            "x": 32,
+                            "y": -10
+                        },
+                        "node_id": "dfb85d29-153a-4d0f-905a-aabf257f8cfe",
+                        "port_number": 0
+                    }
+                ],
+                "suspend": false
+            },
+            {
+                "filters": {},
+                "link_id": "4796add3-8b16-4bf1-85fc-8e272b56df86",
+                "link_style": {},
+                "nodes": [
+                    {
+                        "adapter_number": 1,
+                        "label": {
+                            "rotation": 0,
+                            "style": "font-family: TypeWriter;font-size: 10.0;font-weight: bold;fill: #000000;fill-opacity: 1.0;",
+                            "text": "f1/0",
+                            "x": 57,
+                            "y": 47
+                        },
+                        "node_id": "bc0b3af5-504e-4310-aa34-384f1bc2f6a7",
+                        "port_number": 0
+                    },
+                    {
+                        "adapter_number": 0,
+                        "label": {
+                            "rotation": 0,
+                            "style": "font-family: TypeWriter;font-size: 10.0;font-weight: bold;fill: #000000;fill-opacity: 1.0;",
+                            "text": "e0",
+                            "x": -7,
+                            "y": 0
+                        },
+                        "node_id": "577b685b-b5ae-4726-b6ef-f7645ca30464",
+                        "port_number": 0
+                    }
+                ],
+                "suspend": false
+            }
+        ],
+        "nodes": [
+            {
+                "compute_id": "local",
+                "console": 5001,
+                "console_auto_start": false,
+                "console_type": "telnet",
+                "custom_adapters": [],
+                "first_port_name": null,
+                "height": 59,
+                "label": {
+                    "rotation": 0,
+                    "style": "font-family: TypeWriter;font-size: 10.0;font-weight: bold;fill: #000000;fill-opacity: 1.0;",
+                    "text": "PC1",
+                    "x": 15,
+                    "y": -25
+                },
+                "locked": false,
+                "name": "PC1",
+                "node_id": "e75bd712-2fa5-4a9f-9934-fe88d77be907",
+                "node_type": "vpcs",
+                "port_name_format": "Ethernet{0}",
+                "port_segment_size": 0,
+                "properties": {},
+                "symbol": ":/symbols/vpcs_guest.svg",
+                "template_id": "19021f99-e36f-394d-b4a1-8aaa902ab9cc",
+                "width": 65,
+                "x": -290,
+                "y": 38,
+                "z": 1
+            },
+            {
+                "compute_id": "local",
+                "console": 5003,
+                "console_auto_start": false,
+                "console_type": "telnet",
+                "custom_adapters": [],
+                "first_port_name": null,
+                "height": 59,
+                "label": {
+                    "rotation": 0,
+                    "style": "font-family: TypeWriter;font-size: 10.0;font-weight: bold;fill: #000000;fill-opacity: 1.0;",
+                    "text": "PC2",
+                    "x": 15,
+                    "y": -25
+                },
+                "locked": false,
+                "name": "PC2",
+                "node_id": "dfb85d29-153a-4d0f-905a-aabf257f8cfe",
+                "node_type": "vpcs",
+                "port_name_format": "Ethernet{0}",
+                "port_segment_size": 0,
+                "properties": {},
+                "symbol": ":/symbols/vpcs_guest.svg",
+                "template_id": "19021f99-e36f-394d-b4a1-8aaa902ab9cc",
+                "width": 65,
+                "x": -77,
+                "y": 74,
+                "z": 1
+            },
+            {
+                "compute_id": "local",
+                "console": 5005,
+                "console_auto_start": false,
+                "console_type": "telnet",
+                "custom_adapters": [],
+                "first_port_name": null,
+                "height": 59,
+                "label": {
+                    "rotation": 0,
+                    "style": "font-family: TypeWriter;font-size: 10.0;font-weight: bold;fill: #000000;fill-opacity: 1.0;",
+                    "text": "PC3",
+                    "x": 15,
+                    "y": -25
+                },
+                "locked": false,
+                "name": "PC3",
+                "node_id": "577b685b-b5ae-4726-b6ef-f7645ca30464",
+                "node_type": "vpcs",
+                "port_name_format": "Ethernet{0}",
+                "port_segment_size": 0,
+                "properties": {},
+                "symbol": ":/symbols/vpcs_guest.svg",
+                "template_id": "19021f99-e36f-394d-b4a1-8aaa902ab9cc",
+                "width": 65,
+                "x": 159,
+                "y": 32,
+                "z": 1
+            },
+            {
+                "compute_id": "local",
+                "console": 5000,
+                "console_auto_start": false,
+                "console_type": "telnet",
+                "custom_adapters": [],
+                "first_port_name": null,
+                "height": 48,
+                "label": {
+                    "rotation": 0,
+                    "style": "font-family: TypeWriter;font-size: 10.0;font-weight: bold;fill: #000000;fill-opacity: 1.0;",
+                    "text": "ESW1",
+                    "x": 3,
+                    "y": -25
+                },
+                "locked": false,
+                "name": "ESW1",
+                "node_id": "bc0b3af5-504e-4310-aa34-384f1bc2f6a7",
+                "node_type": "dynamips",
+                "port_name_format": "Ethernet{0}",
+                "port_segment_size": 0,
+                "properties": {
+                    "auto_delete_disks": false,
+                    "aux": null,
+                    "clock_divisor": 8,
+                    "disk0": 1,
+                    "disk1": 0,
+                    "dynamips_id": 1,
+                    "exec_area": 64,
+                    "idlemax": 500,
+                    "idlepc": "",
+                    "idlesleep": 30,
+                    "image": "c3725-advipservicesk9-mz.124-21.image",
+                    "image_md5sum": "c336fa915d7ecd3b821c5e562c4326ab",
+                    "iomem": 5,
+                    "mac_addr": "c201.1e79.0000",
+                    "mmap": true,
+                    "nvram": 256,
+                    "platform": "c3725",
+                    "ram": 128,
+                    "slot0": "GT96100-FE",
+                    "slot1": "NM-16ESW",
+                    "slot2": null,
+                    "sparsemem": true,
+                    "system_id": "FTX0945W0MY",
+                    "usage": "",
+                    "wic0": null,
+                    "wic1": null,
+                    "wic2": null
+                },
+                "symbol": ":/symbols/multilayer_switch.svg",
+                "template_id": "804bcd53-870c-4c03-a5c8-b1e0652b3f33",
+                "width": 51,
+                "x": -70,
+                "y": -138,
+                "z": 1
+            }
+        ]
+    },
+    "type": "topology",
+    "variables": null,
+    "version": "2.2.43",
+    "zoom": 100
+}
\ No newline at end of file
diff --git a/2ano/1semestre/rc1/pratica03/pratica03/project-files/dynamips/bc0b3af5-504e-4310-aa34-384f1bc2f6a7/c3725_i1_rom b/2ano/1semestre/rc1/pratica03/pratica03/project-files/dynamips/bc0b3af5-504e-4310-aa34-384f1bc2f6a7/c3725_i1_rom
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diff --git a/2ano/1semestre/rc1/pratica03/pratica03/project-files/dynamips/bc0b3af5-504e-4310-aa34-384f1bc2f6a7/c3725_i1_slot0 b/2ano/1semestre/rc1/pratica03/pratica03/project-files/dynamips/bc0b3af5-504e-4310-aa34-384f1bc2f6a7/c3725_i1_slot0
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diff --git a/2ano/1semestre/rc1/pratica03/pratica03/project-files/dynamips/bc0b3af5-504e-4310-aa34-384f1bc2f6a7/c3725_i1_slot1 b/2ano/1semestre/rc1/pratica03/pratica03/project-files/dynamips/bc0b3af5-504e-4310-aa34-384f1bc2f6a7/c3725_i1_slot1
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diff --git a/2ano/1semestre/rc1/pratica03/pratica03/project-files/dynamips/bc0b3af5-504e-4310-aa34-384f1bc2f6a7/c3725_i1_ssa b/2ano/1semestre/rc1/pratica03/pratica03/project-files/dynamips/bc0b3af5-504e-4310-aa34-384f1bc2f6a7/c3725_i1_ssa
new file mode 100755
index 0000000..9c5c271
Binary files /dev/null and b/2ano/1semestre/rc1/pratica03/pratica03/project-files/dynamips/bc0b3af5-504e-4310-aa34-384f1bc2f6a7/c3725_i1_ssa differ
diff --git a/2ano/1semestre/rc1/pratica03/pratica03/project-files/dynamips/bc0b3af5-504e-4310-aa34-384f1bc2f6a7/configs/i1_startup-config.cfg b/2ano/1semestre/rc1/pratica03/pratica03/project-files/dynamips/bc0b3af5-504e-4310-aa34-384f1bc2f6a7/configs/i1_startup-config.cfg
new file mode 100644
index 0000000..ddc41b7
--- /dev/null
+++ b/2ano/1semestre/rc1/pratica03/pratica03/project-files/dynamips/bc0b3af5-504e-4310-aa34-384f1bc2f6a7/configs/i1_startup-config.cfg
@@ -0,0 +1,192 @@
+!
+
+!
+version 12.4
+service timestamps debug datetime msec
+service timestamps log datetime msec
+no service password-encryption
+no service dhcp
+!
+hostname ESW1
+!
+boot-start-marker
+boot-end-marker
+!
+!
+no aaa new-model
+memory-size iomem 5
+no ip routing
+no ip icmp rate-limit unreachable
+no ip cef
+!
+!
+!
+!
+no ip domain lookup
+ip auth-proxy max-nodata-conns 3
+ip admission max-nodata-conns 3
+!
+!
+!
+!
+!
+!
+!
+!
+!
+!
+!
+!
+!
+!
+!
+vtp file nvram:vlan.dat
+
+!
+!
+ip tcp synwait-time 5
+! 
+!
+!
+!
+!
+interface FastEthernet0/0
+ description *** Unused for Layer2 EtherSwitch ***
+ no ip address
+ no ip route-cache
+ shutdown
+ duplex auto
+ speed auto
+!
+interface FastEthernet0/1
+ description *** Unused for Layer2 EtherSwitch ***
+ no ip address
+ no ip route-cache
+ shutdown
+ duplex auto
+ speed auto
+!
+interface FastEthernet1/0
+ duplex full
+ speed 100
+!
+interface FastEthernet1/1
+ duplex full
+ speed 100
+!
+interface FastEthernet1/2
+ duplex full
+ speed 100
+!
+interface FastEthernet1/3
+ duplex full
+ speed 100
+!
+interface FastEthernet1/4
+ duplex full
+ speed 100
+!
+interface FastEthernet1/5
+ switchport access vlan 2
+ duplex full
+ speed 100
+!
+interface FastEthernet1/6
+ switchport access vlan 2
+ duplex full
+ speed 100
+!
+interface FastEthernet1/7
+ switchport access vlan 2
+ duplex full
+ speed 100
+!
+interface FastEthernet1/8
+ switchport access vlan 2
+ duplex full
+ speed 100
+!
+interface FastEthernet1/9
+ duplex full
+ speed 100
+!
+interface FastEthernet1/10
+ duplex full
+ speed 100
+!
+interface FastEthernet1/11
+ duplex full
+ speed 100
+!
+interface FastEthernet1/12
+ duplex full
+ speed 100
+!
+interface FastEthernet1/13
+ duplex full
+ speed 100
+!
+interface FastEthernet1/14
+ duplex full
+ speed 100
+!
+interface FastEthernet1/15
+ duplex full
+ speed 100
+!
+interface Vlan1
+ no ip address
+ no ip route-cache
+ shutdown
+!
+ip forward-protocol nd
+!
+!
+no ip http server
+no ip http secure-server
+!
+no cdp log mismatch duplex
+!
+!
+!
+!
+control-plane
+!
+!
+!
+!
+!
+!
+!
+!
+!
+banner exec 
+
+***************************************************************
+This is a normal Router with a SW module inside (NM-16ESW)
+It has been preconfigured with hard coded speed and duplex
+
+To create vlans use the command "vlan database" from exec mode
+After creating all desired vlans use "exit" to apply the config
+
+To view existing vlans use the command "show vlan-switch brief"
+
+Warning: You are using an old IOS image for this router.
+Please update the IOS to enable the "macro" command!
+***************************************************************
+
+
+!
+line con 0
+ exec-timeout 0 0
+ privilege level 15
+ logging synchronous
+line aux 0
+ exec-timeout 0 0
+ privilege level 15
+ logging synchronous
+line vty 0 4
+ login
+!
+!
+end
diff --git a/2ano/1semestre/rc1/pratica03/pratica03/project-files/vpcs/577b685b-b5ae-4726-b6ef-f7645ca30464/startup.vpc b/2ano/1semestre/rc1/pratica03/pratica03/project-files/vpcs/577b685b-b5ae-4726-b6ef-f7645ca30464/startup.vpc
new file mode 100644
index 0000000..665e193
--- /dev/null
+++ b/2ano/1semestre/rc1/pratica03/pratica03/project-files/vpcs/577b685b-b5ae-4726-b6ef-f7645ca30464/startup.vpc
@@ -0,0 +1,9 @@
+# This the configuration for PC3
+#
+# Uncomment the following line to enable DHCP
+# dhcp
+# or the line below to manually setup an IP address and subnet mask
+# ip 192.168.1.1 255.0.0.0
+#
+
+set pcname PC3
diff --git a/2ano/1semestre/rc1/pratica03/pratica03/project-files/vpcs/577b685b-b5ae-4726-b6ef-f7645ca30464/vpcs.log b/2ano/1semestre/rc1/pratica03/pratica03/project-files/vpcs/577b685b-b5ae-4726-b6ef-f7645ca30464/vpcs.log
new file mode 100644
index 0000000..e69de29
diff --git a/2ano/1semestre/rc1/pratica03/pratica03/project-files/vpcs/dfb85d29-153a-4d0f-905a-aabf257f8cfe/startup.vpc b/2ano/1semestre/rc1/pratica03/pratica03/project-files/vpcs/dfb85d29-153a-4d0f-905a-aabf257f8cfe/startup.vpc
new file mode 100644
index 0000000..83bf5e4
--- /dev/null
+++ b/2ano/1semestre/rc1/pratica03/pratica03/project-files/vpcs/dfb85d29-153a-4d0f-905a-aabf257f8cfe/startup.vpc
@@ -0,0 +1,9 @@
+# This the configuration for PC2
+#
+# Uncomment the following line to enable DHCP
+# dhcp
+# or the line below to manually setup an IP address and subnet mask
+# ip 192.168.1.1 255.0.0.0
+#
+
+set pcname PC2
diff --git a/2ano/1semestre/rc1/pratica03/pratica03/project-files/vpcs/dfb85d29-153a-4d0f-905a-aabf257f8cfe/vpcs.log b/2ano/1semestre/rc1/pratica03/pratica03/project-files/vpcs/dfb85d29-153a-4d0f-905a-aabf257f8cfe/vpcs.log
new file mode 100644
index 0000000..e69de29
diff --git a/2ano/1semestre/rc1/pratica03/pratica03/project-files/vpcs/e75bd712-2fa5-4a9f-9934-fe88d77be907/startup.vpc b/2ano/1semestre/rc1/pratica03/pratica03/project-files/vpcs/e75bd712-2fa5-4a9f-9934-fe88d77be907/startup.vpc
new file mode 100644
index 0000000..b249da8
--- /dev/null
+++ b/2ano/1semestre/rc1/pratica03/pratica03/project-files/vpcs/e75bd712-2fa5-4a9f-9934-fe88d77be907/startup.vpc
@@ -0,0 +1,9 @@
+# This the configuration for PC1
+#
+# Uncomment the following line to enable DHCP
+# dhcp
+# or the line below to manually setup an IP address and subnet mask
+# ip 192.168.1.1 255.0.0.0
+#
+
+set pcname PC1
diff --git a/2ano/1semestre/rc1/pratica03/pratica03/project-files/vpcs/e75bd712-2fa5-4a9f-9934-fe88d77be907/vpcs.log b/2ano/1semestre/rc1/pratica03/pratica03/project-files/vpcs/e75bd712-2fa5-4a9f-9934-fe88d77be907/vpcs.log
new file mode 100644
index 0000000..e69de29