How to associate pcap.Interface with net.Interface?

Hi,

As mentioned in subject, I am trying to figure out which pcap.Interface represents which net.Interface

As I understand pcap.Interface is actually a hardware device, while net.Interface is a network connection (ie. a logical construct in Windows to control hardware device).

Is the only way to associate them together using IP Address? (suprisingly, pcap.Interface doesn't expose Hardware Address field)

I am looking for a better way to associate them together. Perhaps based on interface index? (couldn't find it in pcap.Interface)