Solution and implementation for Q1 from Computer Networks (cnl).
You can Download Ready made project here (BUS TOPOLOGY):
https://raw.githubusercontent.com/AlbatrossC/sppu-codes/main/answers/cnl/1_bus_topology.pkt
JUST OPEN THIS FILE IN CISCO Packet TRACER AND FAST FORWARD THE TIME.
Manually Doing this:
Step 1: Bring Devices onto the Workspace:
From the Device List (bottom section) of Packet Tracer, drag and drop:
4 PCs → (End Devices → PC)
2 Switches (2960) → (Switches → 2960)
1 Router (1941) → (Routers → 1941)
You should have:
Left side: PC0, PC1 connected to Switch0
Right side: PC2, PC3 connected to Switch1
Router in the middle, connecting both switches
Step 2: Connect All Devices
Use Copper Straight-Through cables for all connections.
| From | To | Port Type |
| ------- | --------------------------- | --------------- |
| PC0 | Switch0 | FastEthernet |
| PC1 | Switch0 | FastEthernet |
| PC2 | Switch1 | FastEthernet |
| PC3 | Switch1 | FastEthernet |
| Switch0 | Router (GigabitEthernet0/0) | GigabitEthernet |
| Switch1 | Router (GigabitEthernet0/1) | GigabitEthernet |
STEP3: Router Configuration
1. Open Router (1941)
- Go to Config tab
2. Configure Interface G0/0
- IP Address: 192.168.1.1
- Subnet Mask: 255.255.255.0
- Port Status: ON
3. Configure Interface G0/1
- IP Address: 192.168.2.1
- Subnet Mask: 255.255.255.0
- Port Status: ON
4. Save and Verify
- Close configuration window
- Both interface lights should be GREEN
Green dots on both interfaces indicate active links
Step 4: Configure Each PC
Click on each PC → Desktop tab → IP Configuration
| 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 |
Step 5: Testing. Click the message icon (Add Simple PDU) P
And click on PC to Router , PC to PC , etc