Bro is now Zeek.
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|* [[https://www.bro.org/|Bro]] a powerful network analysis framework (BSD license, Linux, FreeBSD, macOS, possibly other various UN*Xes)|
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|* [[https://zeek.org/|Zeek (formerly Bro)]] an open source network security monitoring tool (BSD license, Linux, FreeBSD, macOS, possibly other various UN*Xes)|
You will find additional development related tools in the Development page.
editcap edit and/or translate the format of capture files
mergecap merges multiple capture files into one
randpkt random packet generator
rawshark dump and analyze raw libpcap data
reordercap reorder input file by timestamp into output file
text2pcap generates a capture file from an ASCII hexdump of packets
osXextraction, a macOS bash script to extract particular packet types from a capture file (NOTE: it's not very macOS-specific - some small changes should allow it to work on other UN*Xes, and would probably allow it to work on Windows with Cygwin as well.)
pdetipv4.py : Detect IPv4 packet headers in binary dumps, Perl3, Code development https://github.com/gr8drag1/pdetipv4, discussion https://www.linkedin.com/posts/vadim-zakharine-bb55922_wireshark-ip-capture-activity-6601113583017439232-pCGo
RtpH263DumpScript, a perl script to dump H.263 video data
Tools related to NetworkTroubleshooting and alike.
Dedicated capture tools
dumpcap shipped with Wireshark, already mentioned at the "Internal" section above
multicap (a packet capture tool for Linux)
netsniff-ng (a packet capture tool for Linux)
netsh trace the Windows native command-line tracing tool
PacketCache Capture packets in RAM (Windows only)
Packet Sniffer Connection oriented TCP/IP packet sniffer and protocol analyzer
RawCap (a raw socket sniffer for Windows)
snoop SunOS/Solaris capture tool
SPAN Port Configurator (a Cisco SPAN port configuration tool for Windows)
Colasoft Capsa Free Network Analyzer is a network analyzer freeware for Ethernet monitoring, troubleshooting and analysis. (Windows freeware)
Cap'r Mak'r generates new pcaps for various protocols
EtherApe A graphical network monitor (GPL, Linux only)
Ettercap Allows for sniffing of machines in a switched network LAN (GPL, BSD/Linux/Solaris)
ExtShark is web-interface to tshark. It will bring dumping to cloud.
Homer SIP Capture Server & Agent
HPD Online hex message and pcap file parser with packet visualization.
joincap Merge multiple pcap files together, gracefully (MIT, Linux/MacOS/Windows)
junkie A real-time packet sniffer and analyzer (AGPLv3, Linux)
justsniffer is a tcp packet sniffer. (GPL, BSD/Linux/Win32)
Mojo Packets Mojo Packets™ is web based tool which aims to simplify trace based analysis and troubleshooting of connectivity issues observed in Wi-Fi (IEEE 802.11) environments.
Mu DoS converts any packet into a DoS generator
netsniff-ng is a free, Linux network analyzer and networking toolkit.
NetworkMiner A network forensic analysis tool (GPL, Windows)
Ntop Network top - tool that lets you analyze network traffic statistics (GPL, FreeBSD/Linux/Unix)
Online PCAP to MSC chart Generator generates MSC arrow diagram charts from PCAP files.
packet-o-matic is a packet sniffer, supporting fairly general packet processing, used mainly for network forensics. (GPL, BSD/Linux/macOS/Solaris)
pcap_diff compares pcap files for received, missing or altered packets.
Prelude Another network intrusion detection system (GPL, BSD/Linux/Unix)
Show Traffic shows continuous summary list of TCP/UDP traffic (BSD, Win32)
Snort Network intrusion detection system (GPL, BSD/Linux/Unix/Win32)
SplitCap A pcap file splitter.
Suricata a free and open source, mature, fast and robust network threat detection engine. (GPLv2, Windows, various Un*Xes)
tcpstat Tool for reporting statistics for TCP connections (BSD style, BSD/Linux/Unix)
tcptrace Tool for analysis of TCP connections (GPL, BSD/Linux/Unix)
TcpView maps TCP/UDP endpoints to running programs (Freeware, Win32)
tracesplit will split a trace into a number of smaller tracefiles (GPLv3)
Tranalyzer It is a lightweight flow generator and packet analyzer application (GPL, Linux)
TrimPCAP Trim PCAP files
VisualEther Protocol Analyzer generates sequence diagrams from Wireshark PDML output (Win32)
Xplico A network forensic analysis tool (GPL, Linux only)
Zeek (formerly Bro) an open source network security monitoring tool (BSD license, Linux, FreeBSD, macOS, possibly other various UN*Xes)
HexInject is a very versatile packet injector and sniffer, that provides a command-line framework for raw network access. (BSD License (2011), *nix)
Network Traffic Generator Client/Server based TCP/UDP traffic generator (GPL, BSD/Linux/Win32)
packETH GUI/CLI Ethernet packet generator (GPL, Linux/OSX/Windows)
PlayCap is a GUI tool for playing back pcap/Wireshark captures (GPL, Linux/Windows).
tcpreplay the opposite of tcpdump, send pcap files out of an interface (BSD, BSD/Linux/Unix)
This is another collection of traffic generators: http://www.grid.unina.it/software/ITG/link.php
Capture file editors and/or anonymizers
The bittwiste tool from Bit-Twist.
The Crypto-PAn tool.
The pktanon tool from the Karlsruhe Institute of Technology Institute of Telematics.
The SafePCAP tool from Omnipacket.
The SCRUB-tcpdump tool.
The TraceWrangler tool.
The WireEdit tool from Omnipacket.
Colasoft Packet Builder enables creating custom network packets; users can use this tool to check their network protection against attacks and intruders. Colasoft Packet Builder includes a very powerful editing feature. Besides common HEX editing raw data, it features a Decoding Editor allowing users to edit specific protocol field values much easier. (Windows, see EULA)
Capture file repair
These tools attempt to repair damaged capture files as much as can be done.
pcapfix can repair corrupted or truncated capture files.
Capture file tools
large-pcap-analyzer is designed to perform some common operations on very large PCAP files at high speed.
Capture file conversion
These tools convert between different capture file formats.
PcapNG.com Free online service that converts pcapng files to plain libpcap (pcap) format.
Awesome PCAP Tools A list of tools to process pcap files in research of network traffic
A list of tools Web page of links to various networking tools
Network Security Toolkit (NST 30-11210) Fedora-based (F30) bootable Linux distribution with best-of-breed open source network security tools. Provides a Web-Based frontend to the dumpcap network packet capture engine with dump file format: pcapng support. Simultaneous network packet capture on up to 4 network interfaces per Multi-Tap session is supported. Also provides IPv4 Address conversation geolocations and extensive HTML report generation from PDML and PSML packet decoding. See the article: Multi-Tap Network Packet Capturing for a tutorial and example usage. Capture starting can be delayed by a duration or an absolute date. Captures can be uploaded from NST to "CloudShark.org" or a "CloudShark Appliance" for viewing, sharing and analysis in a web browser (See: HowTo Use The NST CloudShark Upload Manager for additional information).
Packetfactory projects Various networking-related tools and libraries
Currently, raw USB traffic can be captured with Wireshark only under Linux, macOS, and Windows; see CaptureSetup/USB. If it's an Ethernet (or any other network related) USB adapter, Wireshark can capture e.g. Ethernet traffic from that USB device if the platform supports it (which it usually will do). On Win32 you can however try:
SniffUSB "minor" updates and port of usbsnoop 1.8 (v2.0.0006 Feb 2007)
SnoopyPro based on usbsnoopy, last updated (v0.22) in 2002 (GPL, Win32)
Also usbsnoop seems to be by the same developer, but updated through 2001-2003 (latest v1.8)
usbsnoopy last updated (v0.13) in 2001 (no license, source incl., Win32)