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‎_toc.yml‎

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- file: cisco/tutorial-series/tutorial9
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- file: cisco/tutorial-series/tutorial10
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- file: cisco/tutorial-series/tutorial11
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- file: cisco/tutorial-series/tutorial12
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- file: cisco/handy-tips/index
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title: Handy Tips

‎cisco/tutorial-series/tutorial10.md‎

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@@ -4,6 +4,13 @@ This tutorial is the ninth in our Cisco Packet Tracer series and introduces **dy
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We'll use the same three-router topology from the previous tutorial, manually configure IP addresses, and add static routes to ensure full connectivity between all PCs.
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If you're after a different routing protocol, check out -
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- [Tutorial 9: Configuring Static Routing in Packet Tracer](../tutorial-series/tutorial9.md)
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- [Tutorial 10: Configuring RIP Routing in Packet Tracer](../tutorial-series/tutorial10.md)
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- [Tutorial 11: Configuring OSPF Routing in Packet Tracer](../tutorial-series/tutorial11.md)
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- [Tutorial 12: Configuring EIGRP Routing in Packet Tracer](../tutorial-series/tutorial12.md)
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---
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## Part 1 – Network Topology Overview

‎cisco/tutorial-series/tutorial11.md‎

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We’ll extend our previous three-router topology by adding an extra link between R0 and R2, configure OSPF across all routers, and verify dynamic routing.
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If you're after a different routing protocol, check out -
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- [Tutorial 9: Configuring Static Routing in Packet Tracer](../tutorial-series/tutorial9.md)
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- [Tutorial 10: Configuring RIP Routing in Packet Tracer](../tutorial-series/tutorial10.md)
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- [Tutorial 11: Configuring OSPF Routing in Packet Tracer](../tutorial-series/tutorial11.md)
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- [Tutorial 12: Configuring EIGRP Routing in Packet Tracer](../tutorial-series/tutorial12.md)
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---
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## Part 1 – Network Topology Overview

‎cisco/tutorial-series/tutorial12.md‎

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# 12 - Configuring EIGRP Routing in Cisco Packet Tracer
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This tutorial is the twelfth in our Cisco Packet Tracer series and focuses on **EIGRP (Enhanced Interior Gateway Routing Protocol)**, a **hybrid dynamic routing** protocol developed by Cisco. Unlike RIP, EIGRP supports larger networks, faster convergence, and uses composite metrics based on bandwidth and delay to make routing decisions.
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We’ll extend our previous three-router topology by adding an extra link between R0 and R2 (just like how we did for OSPF), configure EIGRP across all routers, and verify dynamic routing.
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If you're after a different routing protocol, check out -
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- [Tutorial 9: Configuring Static Routing in Packet Tracer](../tutorial-series/tutorial9.md)
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- [Tutorial 10: Configuring RIP Routing in Packet Tracer](../tutorial-series/tutorial10.md)
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- [Tutorial 11: Configuring OSPF Routing in Packet Tracer](../tutorial-series/tutorial11.md)
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- [Tutorial 12: Configuring EIGRP Routing in Packet Tracer](../tutorial-series/tutorial12.md)
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---
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## Part 1 – Network Topology Overview
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This network includes:
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* **Three routers (R1, R2, R3)** all connected to each other
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* **Three switches (S1, S2, S3)** – one per router
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* **Two PCs per switch** (6 total PCs)
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The goal is to enable all PCs to communicate through EIGRP-configured routers.
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![Figure](../../img/cisco-tutorials/tutorial-11/fig1.png)
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---
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## Part 2 – Device Placement and Cabling
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### Step 2.1 – Add Devices to the Workspace
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From **Network Devices** and **End Devices**, place:
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* **3 Routers** (Router-PT-Empty)
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* **3 Switches** (2960)
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* **6 PCs**
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Label the devices:
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* Routers: **R0**, **R1**, **R2**
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* Switches: **S0**, **S1**, **S2**
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* PCs: **PC0–PC5**
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### Step 2.2 – Add Network Modules to Routers
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For this topology, use **Router-PT-Empty** devices. Each router needs **two Serial** and **two FastEthernet** interfaces to support all required connections.
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Follow these steps for **R0**, **R1**, and **R2**:
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1. Click the router to open its configuration window.
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2. Go to the **Physical** tab.
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3. Click the **power button** to turn off the router (the green light will go out).
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![Figure](../../img/cisco-tutorials/tutorial-9/fig1.png)
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4. In the module area, locate **PT-ROUTER-NM-1S** (Serial Port) and **PT-ROUTER-NM-1CFE** (FastEthernet).
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5. Drag and insert **two** PT-ROUTER-NM-1S modules into the first two empty slots (from right to left).
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![Figure](../../img/cisco-tutorials/tutorial-9/fig2.png)
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6. Drag and insert **two** PT-ROUTER-NM-1CFE modules into the next two empty slots.
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![Figure](../../img/cisco-tutorials/tutorial-9/fig3.png)
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7. Click the **power button** again to turn the router back on.
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![Figure](../../img/cisco-tutorials/tutorial-9/fig4.png)
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### Step 2.2 – Cabling
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Now we will connect the devices using appropriate cables:
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```{admonition} Note
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:class: note
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For clarity and future expansion, I recommend connecting the switch to the router using the last available port on the switch (for example, fa0/24). This keeps the lower-numbered ports free for connecting PCs and other end devices.
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```
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#### **Copper Straight-Through Connections**
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| From | To | Port/Interface |
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| ---- | -- | -------------- |
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| PC0 | S1 | fa0/1 |
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| PC1 | S1 | fa0/2 |
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| S1 | R0 | fa0/24 → fa2/0 |
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| PC2 | S2 | fa0/1 |
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| PC3 | S2 | fa0/2 |
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| S2 | R1 | fa0/24 → fa2/0 |
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| PC4 | S3 | fa0/1 |
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| PC5 | S3 | fa0/2 |
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| S3 | R2 | fa0/24 → fa2/0 |
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#### **Serial DTE Connections**
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| From | To | Port/Interface |
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| ---- | -- | -------------- |
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| R0 | R1 | se0/0 ↔ se1/0 |
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| R1 | R2 | se0/0 ↔ se1/0 |
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| R0 | R2 | se1/0 ↔ se0/0 |
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![Figure](../../img/cisco-tutorials/tutorial-11/fig1.png)
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---
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## Part 3 – IP Addressing Scheme
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Now we will assign IP addresses to all devices, ensuring they can communicate across the network.
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### Subnet Allocation
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For this tutorial, we will use the following subnets:
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| Subnet | Devices | Subnet Mask |
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| -------------- | ------------ | ------------- |
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| 192.168.1.0/24 | PC0, PC1, R0 | 255.255.255.0 |
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| 192.168.2.0/24 | PC2, PC3, R1 | 255.255.255.0 |
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| 192.168.3.0/24 | PC4, PC5, R2 | 255.255.255.0 |
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| 10.0.0.0/30 | R0 ↔ R1 | 255.0.0.0 |
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| 11.0.0.0/30 | R1 ↔ R2 | 255.0.0.0 |
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| 12.0.0.0/30 | R0 ↔ R2 | 255.0.0.0 |
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### Step 3.1 – Assign IPs to PCs
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Go to **Desktop > IP Configuration** on each PC:
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| PC | IP Address | Subnet Mask | Default Gateway |
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| --- | ------------ | ------------- | --------------- |
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| PC0 | 192.168.1.10 | 255.255.255.0 | 192.168.1.1 |
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| PC1 | 192.168.1.11 | 255.255.255.0 | 192.168.1.1 |
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| PC2 | 192.168.2.12 | 255.255.255.0 | 192.168.2.1 |
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| PC3 | 192.168.2.13 | 255.255.255.0 | 192.168.2.1 |
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| PC4 | 192.168.3.14 | 255.255.255.0 | 192.168.3.1 |
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| PC5 | 192.168.3.15 | 255.255.255.0 | 192.168.3.1 |
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![Figure](../../img/cisco-tutorials/tutorial-9/fig7.png)
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![Figure](../../img/cisco-tutorials/tutorial-12/fig1.png)
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---
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## Part 4 – Router Configuration
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Each router in this network handles two types of connections:
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* LAN-side via FastEthernet2/0, connected to a local switch
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* WAN-side via Serial interfaces, connected to neighbouring routers
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* All routers will be configured with EIGRP routing
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````{admonition} Note
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:class: note
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The EIGRP routing configuration is performed using the following steps in the CLI:
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1. Enter EIGRP configuration mode:
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```
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router eigrp 1
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```
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Here, `1` is the autonomous system number (must match on all routers).
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2. Specify which networks to advertise:
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```
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network 192.168.1.0
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network 10.0.0.0
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```
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Here you list the networks directly connected to the router. EIGRP will automatically discover other networks through its neighbours.
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````
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### Step 4.1 – R0 Configuration
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```{admonition} Tip
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:class: tip
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The shorthand for `configure terminal` is `conf t`, which can save time when entering commands.
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```
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```bash
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enable
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configure terminal
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hostname R0
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interface fa2/0
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ip address 192.168.1.1 255.255.255.0
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no shutdown
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exit
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interface se0/0
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ip address 10.0.0.1 255.0.0.0
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clock rate 64000
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no shutdown
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exit
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interface se1/0
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ip address 12.0.0.1 255.0.0.0
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clock rate 64000
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no shutdown
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exit
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router eigrp 1
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network 192.168.1.0
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network 10.0.0.0
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network 12.0.0.0
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no auto-summary
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exit
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exit
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write memory
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exit
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```
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![Figure](../../img/cisco-tutorials/tutorial-12/fig2.png)
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### Step 4.2 – R1 Configuration
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```bash
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enable
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configure terminal
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hostname R1
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interface fa2/0
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ip address 192.168.2.1 255.255.255.0
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no shutdown
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exit
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interface se1/0
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ip address 10.0.0.2 255.0.0.0
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no shutdown
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exit
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interface se0/0
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ip address 11.0.0.1 255.0.0.0
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clock rate 64000
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no shutdown
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exit
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router eigrp 1
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network 192.168.2.0
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network 10.0.0.0
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network 11.0.0.0
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no auto-summary
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exit
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exit
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write memory
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exit
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```
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### Step 4.3 – R2 Configuration
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```bash
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enable
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configure terminal
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hostname R2
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interface fa2/0
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ip address 192.168.3.1 255.255.255.0
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no shutdown
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exit
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interface se1/0
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ip address 11.0.0.2 255.0.0.0
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no shutdown
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exit
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interface se0/0
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ip address 12.0.0.2 255.0.0.0
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no shutdown
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exit
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router eigrp 1
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network 192.168.3.0
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network 11.0.0.0
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network 12.0.0.0
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no auto-summary
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exit
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exit
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write memory
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exit
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```
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---
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## Part 5 – Verification and Testing
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So now your network should be fully configured with EIGRP routing. The next step is to verify that all devices can communicate across the network.
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![Figure](../../img/cisco-tutorials/tutorial-12/fig1.png)
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### Step 5.1 – Check Routing Tables
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Run on each router:
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```bash
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show ip route
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```
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You should see EIGRP routes (`D`) to all remote networks.
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![Figure](../../img/cisco-tutorials/tutorial-12/fig5.png)
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You can specifically specify this by running:
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```bash
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show ip route eigrp
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```
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![Figure](../../img/cisco-tutorials/tutorial-12/fig6.png)
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This command will filter the routing table to show only EIGRP routes, making it easier to verify that all networks are reachable.
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### Step 5.2 – Test Connectivity
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From **PC0**, run:
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```bash
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ping 192.168.1.11
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ping 192.168.2.12
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ping 192.168.3.14
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```
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![Figure](../../img/cisco-tutorials/tutorial-12/fig7.png)
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From **PC3**, ping **PC5**:
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```bash
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ping 192.168.3.15
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```
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![Figure](../../img/cisco-tutorials/tutorial-12/fig8.png)
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Repeat pings between any devices across networks.
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---
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## Summary
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In this tutorial, you:
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* Built a three-router, three-switch network with six PCs
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* Assigned IPs and default gateways to all devices
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* Configured EIGRP routing on each router
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* Verified full network reachability using dynamic routing

‎cisco/tutorial-series/tutorial9.md‎

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We’ll build a three-router network, each connected to a local switch and two PCs, configure IP addressing, set up RIP on each router, and test connectivity between all endpoints.
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If you're after a different routing protocol, check out -
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- [Tutorial 9: Configuring Static Routing in Packet Tracer](../tutorial-series/tutorial9.md)
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- [Tutorial 10: Configuring RIP Routing in Packet Tracer](../tutorial-series/tutorial10.md)
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- [Tutorial 11: Configuring OSPF Routing in Packet Tracer](../tutorial-series/tutorial11.md)
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- [Tutorial 12: Configuring EIGRP Routing in Packet Tracer](../tutorial-series/tutorial12.md)
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---
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## Part 1 – Network Topology Overview

‎img/cisco-tutorials/tutorial-12/fig1.png‎

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‎img/cisco-tutorials/tutorial-12/fig2.png‎

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‎img/cisco-tutorials/tutorial-12/fig3.png‎

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‎img/cisco-tutorials/tutorial-12/fig4.png‎

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‎img/cisco-tutorials/tutorial-12/fig5.png‎

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