Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

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 used hostapd to create a wifi hotspot on Linux, but when it created a interface named "mon.wlan0", what is it used for ? Should I assign it a ip address ?

Now I have "wlan0" and "mon.wlan0", I only give "wlan0" a ip address and it works fine.

share|improve this question

migrated from Mar 20 '12 at 5:41

This question came from our site for professional and enthusiast programmers.

up vote 3 down vote accepted

mon.wlan0 is the monitor interface. It is used by tools such as Wireshark to capture all traffic seen by the NIC, including packets for a different SSID (wireless network) or not addressed to the machine. You shouldn't assign it an IP address or use it anywhere, just leave it.

share|improve this answer

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.