used for further attacks or to cause other issues for the network or system owner. What can be sniffed? One can sniff the following sensitive information from a network − Email traffic FTP passwords Web traffics Telnet passwords Router configuration Chat sessions DNS traffic CHAPTER 7 SNIFFING THE NETWORK How it works A sniffer normally turns the NIC of the system to the promiscuous mode so that it listens to all the data transmitted on its segment. Promiscuous mode refers to the unique way of Ethernet hardware, in particular, network interface cards (NICs), that allows an NIC to receive all traffic on the network, even if it is not addressed to this NIC. By default, a
used for further attacks or to cause other issues for the network or system owner. What can be sniffed? One can sniff the following sensitive information from a network − Email traffic FTP passwords Web traffics Telnet passwords Router configuration Chat sessions DNS traffic CHAPTER 7 SNIFFING THE NETWORK How it works A sniffer normally turns the NIC of the system to the promiscuous mode so that it listens to all the data transmitted on its segment. Promiscuous mode refers to the unique way of Ethernet hardware, in particular, network interface cards (NICs), that allows an NIC to receive all traffic on the network, even if it is not addressed to this NIC. By default, a
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