tcpdump is a common computer network debugging tool that runs under the command line.
It allows the user to intercept and display TCP/IP and other packets being transmitted or received over a network to which the computer is attached.
This program allows you to dump the traffic on a network.
It can be used to print out the headers of packets on a network interface, filter packets that match a certain expression. You can use this tool to track down network problems, to detect “ping attacks” or to monitor network activities.
Key Features
- Able to examine:
- IPv4.
- ICMPv4.
- IPv6.
- ICMPv6.
- UDP.
- TCP.
- SNMP.
- AFS BGP.
- RIP.
- PIM.
- DVMRP.
- IGMP.
- SMB.
- OSPF.
- NFS.
- and many other packet types.
Website: www.tcpdump.org
Support:
Developer: Tcpdump team
License: BSD License
tcpdump is written in C. Learn C with our recommended free books and free tutorials.
Related Software
| Network Analyzers | |
|---|---|
| Wireshark | Network protocol analyzer with a rich and powerful feature set |
| Ettercap | Comprehensive suite for man in the middle attacks |
| Kismet | Wireless network and device detector, sniffer, wardriving tool |
| IPTraf-ng | Feature-laden network statistic monitoring tool |
| netsniff-ng | Swiss army knife for daily Linux network plumbing |
| Kyanos | Networking analysis tool using eBPF |
| EtherApe | Graphical network monitor |
| darkstat | Captures network traffic, calculates usage statistics, and serves reports |
| justniffer | Network TCP packet sniffer with reliable TCP flow rebuilding |
| tcpflow | TCP/IP packet demultiplexer |
| tcpdump | Powerful and hugely respected command-line packet analyzer |
| sniffglue | Packet sniffer written in Rust |
| sniffer | Alternative network traffic sniffer |
| dsniff | Collection of tools for network auditing and penetration testing |
| ngrep | grep applied to the network layer |
| Network Monitor | Rreal-time network connection monitoring tool |
| sniffit | CORBA based sniffer system with ncurses interactive mode |
| Jomon | Network forensics and sniffer tool |
Read our verdict in the software roundup.
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