Re: about capturing the packets at ethernet port...

upasana saxena wrote:

> can anyone help me out by letting me out that how ethereal actually 
> captures tha packets on ethernet ports....

It uses a library called libpcap on various UN*Xes, which uses the 
various native mechanisms on those UN*Xes, and a library called WinPcap 
on Windows, which is a driver to provide a mechanism for WinPcap to use 
plus a port of libpcap to use that mechanism.

> how it can be done through JAVA..

Try jpcap:

	http://sourceforge.net/projects/jpcap

which is a set of Java classes to use libpcap (and perhaps WinPcap; they 
speak of it supporting Windows).

> Is there any option for doing it using 
> Visual basic

Here's the item about that in the WinPcap FAQ:

	http://www.winpcap.org/misc/faq.htm#Q-9