🔗

Mapping Physical Devices to Virtual Devices in GNS3

Jul 4, 2024

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.