Network Automation Suite 🌐

The Problem

A laptop that moves between networks needs different IP settings depending on where it is: a static IP on the work network, DHCP everywhere else. Forgetting to switch (or switching and forgetting to switch back) caused connectivity failures and support calls. Doing it manually every time was error-prone.

The Solution

A PowerShell-based, event-driven automation that detects which WiFi SSID just connected and automatically applies the correct IP configuration (static or DHCP) for that network. No manual toggle, no scripts to remember to run — it reacts to the WiFi event itself.

Intelligent, Event-Driven Network Configuration for Windows

A PowerShell automation suite that eliminates manual IP configuration for corporate environments. This project provides intelligent, automated IP management for both WiFi and Ethernet adapters, ensuring seamless connectivity without DHCP conflicts or manual intervention.

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🎯 Why This Solution?

DHCP Pool Conservation

• Corporate networks often have limited DHCP pools
• Manual static IPs are error-prone and time-consuming
• This suite automatically assigns static IPs based on network context (SSID for WiFi, Hostname for Ethernet)

Zero-DHCP Strategy

• Security First: Prevents DHCP requests on corporate networks entirely
• No Leaks: Guarantees that corporate devices never consume DHCP leases accidentally
• Stateful Management: Only assigns IPs when safe to do so

Seamless Remote Work Experience

• Smart Switching: Automatically detects corporate vs. home networks
• Travel Mode: Reverts to DHCP when out of office (home, hotel, café)
• VLAN Support: Handles complex switching scenarios (e.g., forcing Static IP to switch VLANs)

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🚀 Features

📶 WiFi Automation (src/WiFi)

• SSID-Based Configuration: Automatically applies static IPs when connecting to known corporate SSIDs
• Zero-DHCP Mode: DHCP remains disabled on the adapter; uses netsh to request IPs for non-corporate networks
• Safe Mode Fallback: Reverts to a default static IP when disconnected
• Event-Driven: Triggered by Windows network connection/disconnection events

🔌 Ethernet Automation (src/Ethernet)

• Device-Centric Configuration: Assigns Static IPs based on the Hostname, ensuring the device gets the right IP regardless of which dock/dongle is used
• Zero-DHCP Strategy: Pre-disables DHCP on all Ethernet adapters to prevent auto-DHCP
• VLAN Switching Support: Forces Static IP and validates connectivity (Gateway + WAN) before reverting
• WiFi Auto-Switch: Automatically disables WiFi when a stable Ethernet connection is detected
• Conflict Prevention: "First-Come-First-Serve" logic handles multiple adapters

⏳ Temporary DHCP Override

• Travel Friendly: Easily enable DHCP for X days (e.g., 1 week) using Set-DhcpOverride.ps1
• Auto-Revert: Automatically reverts to Static IP when the duration expires
• Granular Control: Set overrides for WiFi, Ethernet, or both

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📂 Project Structure

/
├── src/
│   ├── WiFi/                  # WiFi automation module
│   │   ├── NetworkEventHandler.ps1
│   │   ├── NetworkConfig.ps1
│   │   ├── Setup-NetworkEventTrigger.ps1
│   │   └── README.md
│   ├── Ethernet/              # Ethernet automation module
│   │   ├── EthernetEventHandler.ps1
│   │   ├── EthernetConfig.ps1
│   │   ├── Setup-EthernetEventTrigger.ps1
│   │   └── README.md
│   └── GUI/                   # (Coming Soon) User Interface
├── logs/                      # Centralized log files
│   ├── WiFi-NetworkEventHandler.log
│   └── Ethernet-EventHandler.log
├── docs/                      # Advanced documentation
│   ├── AdvancedConfiguration.md
│   ├── ITAdminGuide.md
│   ├── Uninstallation.md
│   └── Network-Test-Results.md
└── README.md                  # This file

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🛠️ Getting Started

Prerequisites

• Windows 10/11
• PowerShell 5.1 or later
• Administrator privileges (required for network configuration)

Quick Start

Option 1: WiFi Setup

1. Navigate to WiFi Module

   cd src/WiFi

2. Configure Settings

   Copy-Item NetworkConfig.example.ps1 NetworkConfig.ps1
   notepad NetworkConfig.ps1
   # Add your corporate SSIDs and IP settings

3. Run Setup (as Administrator)

   .\Setup-NetworkEventTrigger.ps1

Option 2: Ethernet Setup

1. Navigate to Ethernet Module

   cd src/Ethernet

2. Configure Settings

   Copy-Item EthernetConfig.example.ps1 EthernetConfig.ps1
   notepad EthernetConfig.ps1
   # Add your Hostname and IP settings

3. Run Setup (as Administrator)

   .\Setup-EthernetEventTrigger.ps1

   Note: This will immediately disable DHCP on all Ethernet adapters.

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⚙️ Configuration Examples

WiFi (src/WiFi/NetworkConfig.ps1)

$CompanyWiFiNetworks = @(
    @{
        SSID        = "CorpWiFi-Office"
        StaticIP    = "10.10.216.100"
        Gateway     = "10.10.216.1"
        # ...
    }
)

Ethernet (src/Ethernet/EthernetConfig.ps1)

$DeviceEthernetMap = @{
    "L-Jacky-01" = @{  # Your Hostname
        IPAddress   = "10.10.216.253"
        Gateway     = "10.10.216.1"
        Description = "Primary Laptop"
    }
}

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❓ Troubleshooting

WiFi Issues

• Script doesn't trigger: Check Event Viewer for Event IDs 8001/8003/10000
• Wrong IP: Verify SSID name matches exactly (case-sensitive)
• Logs: Check logs/WiFi-NetworkEventHandler.log

Ethernet Issues

• "Travel Mode" in Office: Check if your Gateway IP is reachable. The script reverts to DHCP if Gateway AND WAN are unreachable.
• Access Denied: Ensure you run setup scripts as Administrator.
• Logs: Check logs/Ethernet-EventHandler.log

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📚 Documentation

User Documentation

• README.md - This file (quick start guide)
• Advanced Configuration - Auto-connect, logging, interface priorities, security
• Uninstallation Guide - Complete removal procedures

IT Administrator Documentation

• IT Admin Guide - Architecture, deployment models, monitoring, enterprise deployment
• Test Results - Configuration verification and testing

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🤝 Contributing

We welcome contributions! Please create a feature branch and submit a Pull Request.

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📄 License

MIT License