On Apr 28, 2008, at 3:47 PM, Jim McNamara wrote:
Hello all. I've taken some time to search your list archives, and
didn't easily find what I was looking for. I have a brand new HP
dv9820us laptop. The ethernet card is built in, and the whole
motherboard has the nvidia chipset. I'm running Debian Sid with the
2.6.24-1 kernel which was part of the default Debian install. The
installer found the ethernet card without issue, and correctly
inserts the 'forcedeth' module to use it. The card works fine for
generic activities like wired internet access, but neither the
tcpdump software nor wireshark sees the card as a possible interface.
...which means this isn't a Wireshark issue, it's either a libpcap
issue or a Linux issue.
tcpdump:
jimslaptop:/home/jim# tcpdump -ieth0
tcpdump: bind: Network is down
wireshark (as root):
The capture session could not be initiated (bind: Network is down).
Linux issue.
Does "ifconfig eth0" report that the interface is up?
If so, this is some mysterious Linux networking stack weirdness
wherein said networking stack is using a definition of "down" with
which I was not previously acquainted.
If not, presumably you have to configure the interface "up" before you
can capture on it.
