Here’s how to scan your local network to discover connected devices using Windows Command Prompt:
## Quick Method: Using ARP
The simplest approach uses the **ARP (Address Resolution Protocol)** command:
“`
arp -a
“`
This displays a table of all devices that have recently communicated with your computer, showing their **IP addresses** and **MAC addresses**. However, this only shows devices that have already been contacted.
—
## More Thorough Method: Ping Your Network Range
To actively discover devices, **ping your entire network range**:
1. First, find your network information:
“`
ipconfig
“`
Look for your “IPv4 Address” (e.g., `192.168.1.100`) and “Subnet Mask” (e.g., `255.255.255.0`)
2. Determine your network range. If your IP is `192.168.1.100` with subnet `255.255.255.0`, your network is `192.168.1.0` to `192.168.1.255`
3. Ping the entire range. In Windows, you can use a batch script or use PowerShell:
“`
for /L %i in (1,1,255) do ping -n 1 192.168.1.%i | find “Reply”
“`
Replace `192.168.1` with your actual network prefix.
—
## Better Option: Use PowerShell
Open **PowerShell as Administrator** and run:
“`powershell
1..255 | ForEach-Object { $ip = “192.168.1.$_”; ping -Count 1 -TimeoutSeconds 1 $ip 2>$null | Select-Object -ExpandProperty Address }
“`
Replace `192.168.1` with your network prefix. This will list all devices that respond to ping requests.
—
## After Scanning
Once you’ve identified IP addresses, use:
“`
arp -a
“`
…again to see the MAC addresses and device information for the discovered IPs.
—
Would you like help interpreting the results, or do you need guidance on a specific type of device you’re looking for?