
Tcpdump alternatives
Tcpdump is a command-line packet analyzer and is a portable C or C++ library that is intended for capturing network traffic. The tcpdump program is the original tool for network monitoring and data acquisition and is available for all major operating systems. Tcpdump filters packets transmitted on the network or being sent to the program itself. In addition to filtering on IP and Ethernet headers, tcpdump can also filter on link-layer headers.
Tcpdump includes the ability to filter packets based on different criteria and print selected parts of the packet data, such as the payload or just the protocol headers. It can also be used to display the contents of the payload of packets in a human-readable format. Tcpdump will output all of the packets matching the specified expression, regardless of whether they are part of a Telnet session or not. Tcpdump will, by default, not display any packets that do not have a matching expression.


























