Router Simulator - Exploring OSPF and EIGRP

Objective

Learn how to:

1. Add a router into the workspace

2. Open router configuration

3. Enable OSPF

4. Enable EIGRP

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Step 1 — Open NetLab

1. Open the NetLab Individual Workspace. https://netlab.thecybersecguru.com/individual

2. Wait until the simulator interface loads.

You should see:

• Components panel (left) → contains routers and devices

• Workspace (center) → where devices are placed

• Configuration panel (right) → device settings

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Step 2 — Add a Router

1. In the Components panel on the left:

   • Expand Routers

   • Select a router model (example: ISR4331)

2. Drag the router into the empty workspace.

The router should now appear in the center canvas.

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Step 3 — Open Router Configuration

1. Click once on the router in the workspace.

2. The configuration panel opens on the right.

3. Select:

Config → Routing

This section contains routing protocol options.

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Step 4 — Enable OSPF

OSPF (Open Shortest Path First) is a dynamic routing protocol that selects routes based on path cost.

Inside Routing:

1. Tick Enable OSPF

2. Enter:

Field	Example Value
Process ID	1
Router ID	1.1.1.1
OSPF Areas / Networks	192.168.10.0 0.0.0.255 area 0

Example:

Enable OSPF ✓
Process ID: 1
Router ID: 1.1.1.1
OSPF Areas / Networks:
192.168.10.0 0.0.0.255 area 0

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Step 5 — Enable EIGRP

EIGRP (Enhanced Interior Gateway Routing Protocol) is a Cisco routing protocol that calculates efficient routes.

Scroll down to EIGRP Configuration:

1. Tick Enable EIGRP

2. Enter:

Field	Example Value
AS Number	1
Passive Interface	GigabitEthernet0/1 (optional)

Example:

Enable EIGRP ✓
AS Number: 1
Passive Interface:
GigabitEthernet0/1

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Step 6 — Start the Simulation

1. Click Start Simulation at the top.

2. Observe whether routing is activated.

3. Repeat with additional routers if you want to demonstrate route exchange.

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Expected Outcome

Students should be able to:

• Select and place a router

• Open router configuration

• Enable OSPF

• Enable EIGRP

• Understand that routing protocols automate path selection between networks