Address Scheme

Topology Diagram

              +-------------+        +-------------+
              |    Router1  |--------|    Router2  |
              |  G1: 192.168.1.1 |  G1: 192.168.1.2 |
              |  G2: 203.0.113.1 |  G2: 203.0.113.2 |
              +-------------+        +-------------+
                   |                        |
                   |                        |
                   |                        |
              +-------------+        +-------------+
              |    Router3  |--------|    Router4  |
              |  G1: 192.168.1.3 |  G1: 192.168.1.4 |
              |  G2: 203.0.113.3 |  G2: 203.0.113.4 |
              +-------------+        +-------------+
                   |                        |
                   |                        |
                   |                        |
              +-------------+        +-------------+
              |    Router5  |--------|    Router6  |
              |  G1: 192.168.1.5 |  G1: 192.168.1.6 |
              |  G2: 203.0.113.5 |  G2: 203.0.113.6 |
              +-------------+        +-------------+
                   |                        |
                   |                        |
                   |                        |
         +---------+-------------+          |
         |                       |          |
         |                       |          |
    +-------------+        +-------------+  |
    |   Web Server|        | Win10 Host  |  |
    |   Eth0: 192.168.1.10 |  Eth0: 192.168.1.100|
    +-------------+        +-------------+  |

Detailed Device Placement and Connections

1. Router1:

   • G1 (GigabitEthernet1): Connect to internal network (192.168.1.1/24)
   • G2 (GigabitEthernet2): Connect to external network (203.0.113.1/24)
   • Connect G1 to Router2's G1

2. Router2:

   • G1 (GigabitEthernet1): Connect to internal network (192.168.1.2/24)
   • G2 (GigabitEthernet2): Connect to external network (203.0.113.2/24)
   • Connect G1 to Router1's G1
   • Connect G1 to Router3's G1

3. Router3:

   • G1 (GigabitEthernet1): Connect to internal network (192.168.1.3/24)
   • G2 (GigabitEthernet2): Connect to external network (203.0.113.3/24)
   • Connect G1 to Router2's G1
   • Connect G1 to Router4's G1

4. Router4:

   • G1 (GigabitEthernet1): Connect to internal network (192.168.1.4/24)
   • G2 (GigabitEthernet2): Connect to external network (203.0.113.4/24)
   • Connect G1 to Router3's G1
   • Connect G1 to Router5's G1

5. Router5:

   • G1 (GigabitEthernet1): Connect to internal network (192.168.1.5/24)
   • G2 (GigabitEthernet2): Connect to external network (203.0.113.5/24)
   • Connect G1 to Router4's G1
   • Connect G1 to Router6's G1

6. Router6:

   • G1 (GigabitEthernet1): Connect to internal network (192.168.1.6/24)
   • G2 (GigabitEthernet2): Connect to external network (203.0.113.6/24)
   • Connect G1 to Router5's G1

7. Web Server:

   • Ethernet0: Connect to internal network (192.168.1.10/24)

8. Windows 10 Host:

   • Ethernet0: Connect to internal network (192.168.1.100/24)

Setup Steps

1. Start by setting up the physical topology in EVE-NG:

   • Create nodes for each router, the web server, and the Windows 10 host.
   • Connect the nodes according to the topology diagram using G1 and G2 interfaces.

2. Configure IP addresses and interfaces on each router:

   • Ensure each router's interfaces (G1 and G2) are configured with the correct IP addresses.

3. Configure routing between routers:

   • Enable routing protocols (e.g., OSPF) to ensure connectivity between different subnets.

4. Implement the NAT configurations as per each lab scenario on the respective routers.

5. Test connectivity:

   • Use ping and traceroute commands to verify connectivity between internal and external networks.
   • Access the web server from the external network using configured NAT rules.

6. Debug and troubleshoot as needed:

   • Use the provided debug commands to monitor and troubleshoot NAT operations.