🧪 Basic Cisco Router and Switch Configuration Lab (Packet Tracer)

This project was completed as part of a cybersecurity training fellowship. The goal was to simulate a small business network using Cisco Packet Tracer, configure a router and two switches with secure remote access, and verify device-to-device connectivity using CLI tools. All configurations and IP assignments were implemented manually and tested for proper functionality.

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🎯 Lab Objectives

• Build a network using a Cisco 2911 router, two 2960 switches, and four PCs
• Configure interfaces, IP addresses, and default gateways
• Apply basic security to all devices (console, VTY, AUX passwords)
• Enable remote management via VLAN 1 on both switches
• Verify connectivity using CLI commands and Packet Tracer tools

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🧱 Network Design

Subnet	IP Range	Devices
A	192.168.1.0/24	PC0, PC1, Switch0, Router G0/0
B	192.168.2.0/24	PC2, PC3, Switch1, Router G0/1

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🖼️ Topology Diagram

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🧰 Devices Used

• 1x Cisco 2911 Router
• 2x Cisco 2960 Switches
• 4x Generic PCs
• 6x Copper Straight-Through Cables

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💻 PC IP Settings

PC	IP Address	Subnet Mask	Default Gateway
PC0	192.168.1.10	255.255.255.0	192.168.1.1
PC1	192.168.1.11	255.255.255.0	192.168.1.1
PC2	192.168.2.10	255.255.255.0	192.168.2.1
PC3	192.168.2.11	255.255.255.0	192.168.2.1

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⚙️ Configuration Files

• 📄 router-config.txt – Cisco 2911 router configuration
• 📄 switch0-config.txt – Switch0 VLAN and security config
• 📄 switch1-config.txt – Switch1 VLAN and security config

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✅ Verification & Troubleshooting Commands

These are included across the .txt files and should be used in the CLI to validate connectivity:

Command	Purpose
ping [IP_ADDRESS]	Test connectivity between PCs, router, switches
show ip interface brief	Verify IP address and interface status
show running-config	View active configuration
show interfaces status	Check switch port status
show vlan brief	See VLAN assignment and port mapping
show clock	Display system clock (timezone config test)
show mac address-table	Display MAC learning status on switches

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🛠️ Created With

• Cisco Packet Tracer
• Cisco IOS CLI