On Sat, Dec 14, 2002 at 07:15:20PM +0800, Joseph Guo wrote:
> I met a problem on using ethereal 0.98, that is, I can see nothing when
> assigning whatever capture filter, such as "tcp", "tcp port 80" and the
> like, nevertheless, if no filter is assigned, I can get all packets on
> the network. I made sure my filter condition was correct and no
> spell-error.
If you use no filter, are you getting any TCP packets? In fact, are you
getting any packets other than multicast and broadcast packets?
If not, this is probably just
http://www.ethereal.com/faq.html#q5.1
> PS: I can but choose realtek device to capture other than PPP device(if
> choosing this one, I can't capture any packets even if no filter and
> network lose connection.), why?
What operating system are you using? If you're using Windows NT/2000/XP,
then this is probably
http://www.ethereal.com/faq.html#q5.12