A scalable multi-service network designed and simulated in Cisco Packet Tracer, connecting a main office and a remote branch office with VLAN segmentation, routing, centralized network services, wireless access, WAN connectivity, and NAT.
- Router1 for EIGRP and inter-VLAN routing
- Router2 for RIP, NAT, and WAN connectivity
- Two Layer-2 switches
- DHCP and DNS servers
- Wireless access point
- Four PCs and two laptops
- Router3 using RIP
- One Layer-2 switch
- Two PCs with static IP addresses
- Ethernet link between Router1 and Router2
- Serial link between Router2 and Router3
| VLAN | Department | Network | Gateway |
|---|---|---|---|
| 10 | HR | 192.168.10.0/24 | 192.168.10.1 |
| 20 | Finance | 192.168.20.0/24 | 192.168.20.1 |
| 30 | IT / Servers | 192.168.30.0/24 | 192.168.30.1 |
| 40 | Wireless | 192.168.40.0/24 | 192.168.40.1 |
Inter-VLAN routing is implemented on Router1 using Router-on-a-Stick.
- Cisco Packet Tracer
- VLANs and 802.1Q trunking
- Router-on-a-Stick
- EIGRP
- RIP
- Static routing
- DHCP
- DNS
- NAT Overload
- WAN connectivity
- Wireless networking
- WPA2 security
- IPv4 subnetting
DHCP scopes are configured for VLANs 10, 20, 30, and 40 with the appropriate gateway, subnet mask, and DNS settings.
An internal DNS service is configured using the domain dns.local.
The wireless network uses VLAN 40 with the SSID Ap-WiFi and WPA2 security.
Router2 provides NAT Overload for simulated Internet connectivity.
The network was tested for:
- Inter-VLAN communication
- DHCP address assignment
- Connectivity between the branch and main office
- Simulated Internet access through NAT
- Internal DNS name resolution
Successful ICMP tests confirmed communication across the configured network segments.
During implementation, several issues were identified and resolved:
- Incomplete routing between RIP and EIGRP domains
- Overlapping WAN and NAT addressing
- DHCP pool conflicts
- Incorrect NAT inside/outside interface roles
- Switch trunk configuration issues
enterprise-network.pkt— Cisco Packet Tracer projectnetwork-topology.png— Network topology overviewdocs/Network-Project-Report.docx— Detailed project report
- Cisco Packet Tracer