functions/Get-VirtualMacAddress.ps1
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function Get-VirtualMacAddress { <# .SYNOPSIS Generates a virtual MAC address based on an IP address. .DESCRIPTION The Get-VirtualMacAddress function creates a virtual MAC address using a fixed prefix (02:00:00) commonly used for virtual machines, combined with the last three octets of the provided IP address. .PARAMETER IPAddress Specifies the IP address to use as the basis for generating the virtual MAC address. The IP address must be in valid IPv4 format (e.g., 192.168.1.100). .EXAMPLE Get-VirtualMacAddress -IPAddress "192.168.1.100" Returns: 02:00:00:A8:01:64 .EXAMPLE "10.0.0.50" | Get-VirtualMacAddress Returns: 02:00:00:00:00:32 .INPUTS System.String You can pipe a string containing an IP address to Get-VirtualMacAddress. .OUTPUTS System.String Returns a MAC address in the format "XX:XX:XX:XX:XX:XX". .NOTES Author: PSNetworking Module Version: 1.1.0 The function uses a fixed prefix of 02:00:00 which is commonly associated with virtual network interfaces. .LINK https://github.com/imanedr/PSNetworking #> param ( [Parameter(Mandatory = $true,ValueFromPipeline = $true)] [string]$IPAddress ) # Validate the IP address if (-not [System.Net.IPAddress]::TryParse($IPAddress, [ref]$null)) { throw "Invalid IP address format." } # Split the IP address into octets $octets = $IPAddress -split '\.' # Generate the virtual MAC address using a fixed prefix (e.g., 02:00:00) common for virtual machines $macAddress = "02:00:00:{0:X2}:{1:X2}:{2:X2}" -f [int]$octets[1], [int]$octets[2], [int]$octets[3] return $macAddress } |