Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I am really new to Wireshark, and I am little confused about the term capture interface. I see a list of about 9 to 10 so-called interfaces. What are they? I mean, I have only one Ethernet interface card and a wireless card, with each providing one interface, which makes two interfaces(?), doesn't it? But how is that Wireshark tells me there are 9 interfaces?

share|improve this question
Please post a screenshot of those interfaces – MichelZ Jul 18 '12 at 14:35
@Michelz sorry, it says that I have to gain 10 reps before I can post an image :P – Yang Jy Jul 18 '12 at 14:40
No problem. As MDMarra points out, those are "virtual interfaces", which exist on your system – MichelZ Jul 18 '12 at 14:42
up vote 3 down vote accepted

These are virtual interfaces that exist on your machine. If you do ipconfig /all you'll see tunnel adapters, wired adapters, wifi adapters, and possibly even virtual adapters for things like VirtualBox or VMWare Workstation.

There are more interfaces under the hood than just the two physical interfaces that you can see.

share|improve this answer
Thank you for your answer, sir :))) – Yang Jy Jul 18 '12 at 14:47

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.