If your machine is connected to the internet (or VPN) via different network connections, depending on where you are, then the following two functions may be useful to you.
Get-ActiveConnection lists the names of all network connections that currently have an IP address assigned. Test-ActiveConnection accepts a keyword and checks to see whether there are currently any active connections with the keyword in their name.
function Get-ActiveConnection { Get-WmiObject -Class Win32_NetworkAdapterConfiguration | Where-Object { $_.IPAddress } | Select-Object -ExpandProperty Description } function Test-ActiveConnection { param([Parameter(Mandatory)]$Keyword) @(Get-WmiObject -Class Win32_NetworkAdapterConfiguration | Where-Object { $_.IPAddress } | Where-Object { $_.Description -like "*$Keyword*" }).Count -gt 0 }
Here is a quick example output:
PS> Get-ActiveConnection
Dell Wireless 1820A 802.11ac
PS> Test-ActiveConnection dell
True
PS> if ( (Test-ActiveConnection dell) ) { Write-Warning "Connected via DELL network card" }
WARNING: Connected via DELL network card
PS>
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