How can I detect someone sniffing my network?

From: Mario Camara (mario@node1.com.br)
Date: 01/09/02


From: "Mario Camara" <mario@node1.com.br>
To: <security-basics@securityfocus.com>
Date: Wed, 9 Jan 2002 00:13:20 -0200

Can someone help me with that?

 

Mário Câmara
mario@globonet.com.br
mario@node1.com.br
ICQ: 331 335