How to determine the binding order of network interfaces in Windows using .NET?

Question

I am trying to find a magic answer to the "primary IP address" of the system. My research has determined that the answer to "best" means this:

• Take a look at [system.Net.NetworkInformation.NetworkInterface] :: GetAllNetworkInterfaces () for interfaces with default gateways assigned. If you only find it, then you are done.
• If there are several, you need to look at the routing table for the one that has the lowest metric (look at the network entries 0.0.0.0).
• In the case of binding to the metric, the adapter with the lowest binding order wins.

My question is: how do you determine the binding order using .NET? I saw a solution that looks at the registry and this is good, but I was hoping for a more beautiful interface.

Reward points for PowerShell samples as my language of choice. :)

Answer 1

Personally, I see the Registry solution more elegant and reliable. The link you posted already uses PowerShell, so it seems like the perfect solution for you ...

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An alternative registry solution exists here .

Answer 2

API: EnumBindingPaths, ++ #/VB + P/Invoke. Microsoft KB 894564 . Vista/w7, .

, API PowerShell. , , , , .

Answer 3

Try the following:

$IpAddress = (Test-Connection $env:computername -count 1).IPv4address.IPAddressToString

$NetworkAdapter = Get-WmiObject -Class Win32_NetworkAdapterConfiguration -Filter 'ipenabled = "true"'| where {$_.Ipaddress -contains $IpAddress}

$NetworkAdapter.properties| select -Property Name,Value