Windows: Get the interface number of a NIC

I have the following problem: I have a server with a rather dynamic network configuration and need to configure routes on it with the IF parameter:

route add  ... mask ... ... if ?

Is there a reliable way, manual and or programmatical, to get that interface number if I know just about everything else about that adaptor?

Solution 1:

You can see that info also when you run the route print command. It's the first thing displayed. The index is the first column

===========================================================================
Interface List
 13... ......Bluetooth Device (Personal Area Network)
 10... ......Intel(R) 82566MM Gigabit Network Connection
 11... ......Intel(R) Wireless WiFi Link 4965AG
 17... ......VMware Virtual Ethernet Adapter for VMnet1
 18. . ......VMware Virtual Ethernet Adapter for VMnet8

Solution 2:

The following command displays the list of interfaces:

netsh int ipv4 show interfaces

Solution 3:

Since you know everything else about the adaptor, and since you are using Server 2008, you can (and should) just add your routes with netsh using the interface name:

netsh int ipv4 add route <remote netid>/<remote netmask> <interface name> <next hop>

Use of the route command is generally deprecated in 2008+.