This project demonstrates the design and simulation of a small enterprise network using Cisco Packet Tracer, combined with real packet analysis using Wireshark. The network includes multiple routers, switches, and end devices with dynamic routing and traffic analysis.
- 2 Routers
- 2 Switches
- 4 PCs
- Two LANs connected via routers
- Network: 192.168.1.0/24
- PC1: 192.168.1.2
- PC2: 192.168.1.3
- Router1 (Gateway): 192.168.1.1
- Network: 192.168.2.0/24
- PC3: 192.168.2.2
- PC4: 192.168.2.3
- Router2 (Gateway): 192.168.2.1
- Network: 10.0.0.0/30
- Router1: 10.0.0.1
- Router2: 10.0.0.2
- Cisco Packet Tracer
- OSPF (Open Shortest Path First)
- Wireshark (Packet Analyzer)
- ICMP & ARP Protocols
- Configured OSPF dynamic routing between routers
- Used Area 0 (Backbone Area)
- Enabled routing on LAN and inter-router interfaces
- Verified routing tables using CLI
- Successful ping between different LANs
- Verified end-to-end communication
- Observed ARP request and reply
- Analyzed ICMP echo request and reply
- Tracked packet flow across routers
- Captured ICMP packets using ping command
- Analyzed ARP request and response
- Observed real-time packet transmission
icmp→ Ping packetsarp→ Address resolutiondns,tcp(basic exploration)
- Used
pingandtracertfor connectivity testing - Verified routing tables (
show ip route) - Checked interface status (
show ip interface brief) - Identified failure points using simulation and packet capture
- Network design and IP addressing
- Dynamic routing using OSPF
- Packet-level analysis using Wireshark
- Understanding ARP and ICMP protocols
- Network troubleshooting and failure handling
- Add VLAN segmentation
- Implement SNMP monitoring
- Expand topology with more routers
- Analyze HTTP and DNS traffic in Wireshark
Birendra Chaudhary BE Computer Engineering Student