Enterprise Network Design: Accounts & Sales Departments

Objective

Design a network in Cisco Packet Tracer connecting Accounts and Sales departments with proper IP addressing and routing.

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Requirements

Devices per Department

• 2 PCs
• 1 Printer
• 1 Switch

Network Configuration

• Network Address: 192.168.40.0/25
• Subnet Mask: 255.255.255.128
• Router: 1 (connects both departments)

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IP Addressing

Department	Network	Gateway	Range
Accounts	192.168.40.0/25	192.168.40.1	.1 - .126
Sales	192.168.40.128/25	192.168.40.129	.129 - .254

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Device Configuration

Accounts Department

Device	IP	Gateway
PC1	192.168.40.2	192.168.40.1
PC2	192.168.40.3	192.168.40.1
Printer1	192.168.40.4	192.168.40.1

Sales Department

Device	IP	Gateway
PC3	192.168.40.130	192.168.40.129
PC4	192.168.40.131	192.168.40.129
Printer2	192.168.40.132	192.168.40.129

Router Configuration

• FastEthernet 0/0 (Accounts): 192.168.40.1 / 255.255.255.128
• FastEthernet 0/1 (Sales): 192.168.40.129 / 255.255.255.128

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Implementation Steps

1. Add devices: 1 Router, 2 Switches, 4 PCs, 2 Printers
2. Cable devices: Connect PCs/Printers to switches; switches to router
3. Configure router interfaces: Set IPs as shown above
4. Configure all devices: Set IP addresses, subnet mask (255.255.255.128), and default gateway
5. Enable router interfaces: Ensure "no shutdown" is applied

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Testing

Run ping commands from any PC to verify connectivity:

• ping 192.168.40.130 (Accounts to Sales)
• ping 192.168.40.2 (Sales to Accounts)

Expected Result: All pings succeed (0% packet loss)

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Topology