On Sun, Nov 14, 1999 at 02:08:10PM -0000, subb3 at ibm.net wrote:
>> I have 2 interfaces on my linux system. They are modem and ethernet.
> When I use tcpdump to capture info, I cannot get any information
> from the ethernet interface. tcpdump just waits and waits.
>> Here is how, I am invoking tcpdump
>> $ tcpdump -a -v -l -S -i ppp0 <= works fine
> $ tcpdump -a -v -l -S -i eth0 <= No output of any type from my LAN
>> What am I doing wrong here? Is this anything to do with ppp0 being
> the default routing device?
It should have nothing to do with the routing table.
Add -n to prevent DNS reverse lookups for stuff on your LAN. If your
DNS is not setup correctly, these lookups can take quite a while to
Try dropping the -a. It might be causing slow DNS lookups. Shouldn't be
Also, stupid question, but are you sure there is traffic on your ethernet?
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