can i use netcat as ethreal
 

Hi,

netcat can able to listen on the created sockets and port numbers. then why can't i use to sniff all the traffic that are coming to my interface card.

if it is possible, then how could i do that

mallikk_in

no, you can't do that, that's jus totally not what netcat is for. netcat binds to a certain port, just like most network based daemons, apache, squid etc... it doesn't provde any information about the traffic itself, just the data held inside it. that's totally different to wireshark (ethereal), tcpdump etc, which watch traffic passing through the tcp subsystem. you already know that other tools exist, why wouldn't you want to use them?