This is our old Q&A Site. Please post any new questions and answers at


I have an application which uses libpcap and captures the traffic on multiple interfaces. I do have three interfaces eth0, eth1 and wlan0 . When my interface eth1 is down, libpcap works on eth0 as expected. But with eth1 on , it never works. If I enable eth0 and eth1 both then capture on eth1 works and on eth0 interface it wont works.

Any idea, on how to overcome this problem ?

Best yash

asked 18 Jan '13, 01:43

yash's gravatar image

accept rate: 0%

edited 18 Jan '13, 02:10

grahamb's gravatar image

grahamb ♦

Not really a Wireshark question. You may be better off asking on the mailing list for libpcap here.

(18 Jan '13, 01:49) grahamb ♦

As noted, this isn't really a Wireshark question, it's a libpcap question.

The mailing list for libpcap questions is tcpdump-workers; as per grahamb's comment, information on the mailing lists can be found here. (It's not a tcpdump question, either, but tcpdump-workers is, the name notwithstanding, a list for both tcpdump and libpcap.)

permanent link

answered 01 Mar '13, 15:39

Guy%20Harris's gravatar image

Guy Harris ♦♦
accept rate: 19%

Your answer
toggle preview

Follow this question

By Email:

Once you sign in you will be able to subscribe for any updates here



Answers and Comments

Markdown Basics

  • *italic* or _italic_
  • **bold** or __bold__
  • link:[text]( "title")
  • image?![alt text](/path/img.jpg "title")
  • numbered list: 1. Foo 2. Bar
  • to add a line break simply add two spaces to where you would like the new line to be.
  • basic HTML tags are also supported

Question tags:


question asked: 18 Jan '13, 01:43

question was seen: 3,474 times

last updated: 01 Mar '13, 15:39

p​o​w​e​r​e​d by O​S​Q​A