Mapping Physical Devices to Virtual Devices in GNS3

Overview

• In this session, we covered how to map physical devices to work with virtual devices in GNS3.
• Demonstration using a specific topology.

Topology Setup

Physical Devices

• Edge Router: 192.168.0.1
• Physical Firewall: ASA 5505
  • External Interface: 192.168.0.2
  • Internal Interface: 192.168.1.1
• Laptop: Integrates physical and virtual components.
• Cloud Creation: To integrate physical side with the virtual side.

Virtual Devices

• Virtual Switch in GNS3: Acts as a pass-through.
• Client: 192.168.1.3

Configuration Steps

1. IP Address Configuration

• Assign IP addresses to each device.
• Verify connectivity via ping tests.

2. Cloud Setup

• Drag the cloud into the GNS3 workspace.
• Choose the NIC connected to the computer (Ethernet).

3. Connection to the Switch

• Connect the physical computer to the virtual switch.
• Verify connection (Green light).

4. Firewall Configuration

• Use Putty to access the firewall (COM port).
• Configure VLANs for ASA 5505:
  • VLAN 1 (Inside):
    • IP address: 192.168.1.1/24
    • Assign VLAN 1 to Interface Ethernet 0/1
  • VLAN 2 (Outside):
    • IP address: 192.168.0.2
    • Assign VLAN 2 to Interface Ethernet 0/0

5. Connectivity Testing

• Ping the edge router (external interface 192.168.0.1).
• Ping the internal interface (internal interface 192.168.1.1).

6. Client Configuration

• Set the adapter settings to static on the Windows 7 client.
  • IP address: 192.168.1.2
  • Subnet: 255.255.255.0
  • Gateway: 192.168.1.1
• Test connectivity from the client.
  • Ping the Gateway: 192.168.1.1
  • Ping the Firewall: 192.168.1.3

Final Verification

• Ensure all devices are interconnected.
• Successful ping tests indicate correct configuration.

Conclusion

• Successfully mapped physical devices to virtual devices.
• Open for more detailed video requests.
• Contact for further assistance on ASA 5505 or detailed configurations.