Project File: pk.pkt
A small corporate network simulation for IT, HR, and Guest VLANs using Cisco Packet Tracer. Demonstrates practical networking, system administration, and basic cybersecurity skills.
This project simulates a secure company network with multiple departments and essential services. It highlights VLAN segmentation, DHCP, DNS, HTTP, Email (demo), FTP (optional), and ACL-based security.
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Departments / VLANs:
- IT (VLAN 10) – Blue squares
- HR (VLAN 20) – Green squares
- Guest (VLAN 30) – Yellow squares
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Core Infrastructure:
- Router (R1) – Gray rectangle, inter-VLAN routing
- Switch (SW) – Light gray rectangle, connects all PCs and Server
- Server – Red rectangle, provides DHCP, DNS, HTTP, Email, FTP
| Service | IP / VLAN | Description |
|---|---|---|
| DHCP | 192.168.10.1 (IT), 192.168.20.1 (HR), 192.168.30.1 (Guest) | Automatic IP assignment per VLAN |
| DNS | 192.168.10.100 | Resolves company.local for internal websites and email |
| HTTP | 192.168.10.100 | Web pages for IT and HR departments |
| 192.168.10.100 | Demo internal email between IT & HR | |
| FTP (optional) | 192.168.10.100 | File sharing for department folders |
| ACL / Security | Router & Switch | IT VLAN → server access only; HR limited; Guest → internet-only |
| Port Security | Switch ports | Limits MAC addresses, prevents unauthorized devices |
| Device / VLAN | Color | Label |
|---|---|---|
| IT VLAN | Blue | IT |
| HR VLAN | Green | HR |
| Guest VLAN | Yellow | Guest |
- PCs organized in blocks by VLAN
- Router at top center, Switch below, Server near center
- Connections labeled by port (e.g.,
Fa0/1 IT PC1,G0/0.10 IT VLAN)
- VLAN Segmentation: Separates departments to improve security and organization
- Inter-VLAN Routing: Router-on-a-stick configuration for cross-VLAN communication
- DHCP: Automatic IP assignment per VLAN
- DNS & HTTP: Internal website simulation using
company.local - Email: Internal mail simulation for IT & HR
- ACLs: Restrict access based on VLAN, secure sensitive services
- Port Security: Protect switch ports from unauthorized devices
Router (Gray)
|
Switch (Light Gray)
-----------------------------
| IT VLAN (Blue) |
| PC1 PC2 |
-----------------------------
| HR VLAN (Green) |
| PC1 PC2 |
-----------------------------
| Guest VLAN (Yellow) |
| PC1 |
-----------------------------
|
Server (Red)
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Download the project file:
pk.pkt -
Open it in Cisco Packet Tracer
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Test network services:
- Ping between VLANs (per ACL rules)
- DHCP IP assignment for all VLAN PCs
- HTTP access from IT and HR PCs
- Send/receive email internally
- FTP file sharing (optional)
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Observe VLAN separation and security features in simulation mode
If you want, I can also create a short one-image visual “network map” in Markdown to embed in this README — it’ll make your GitHub page look even more professional at first glance.
Do you want me to do that?