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Network Tools

Packet Capture

  • tcpdump, a tool for capturing and dumping packets for further analysis, and WinDump, the Windows port of tcpdump.
  • ngrep, aka network grep, isolate strings in packets, show packet data in human-friendly output.
  • Wireshark (formerly Ethereal), a graphical packet-capture and protocol-analysis tool.
  • Snort, a network-intrusion-detection system.
  • Nmap, a port-scanning and fingerprinting network utility
  • the Bro IDS and network-monitoring platform.
  • URL Snooper, locate the URLs of audio and video files in order to allow recording them.
  • Kismet, for 802.11 wireless LANs
  • L0phtCrack, a password auditing and recovery application.
  • iftop, a tool for displaying bandwidth usage (like top for network traffic)
  • EtherApe, a graphical tool for monitoring network traffic and bandwidth usage in real time.
  • Bit-Twist, a libpcap-based Ethernet packet generator and editor for BSD, Linux, and Windows.
  • Pirni, a network security tool for jailbroken iOS devices.
  • McAfee ePolicy Orchestrator, Rogue System Detection feature
  • NetSim a network simulation software for network R & D
  • XLink Kai Software that allows various LAN console games to be played online
  • Firesheep, an extension for the Firefox web browser, that intercepts unencrypted cookies from certain websites (such as Facebook and Twitter) as the cookies are transmitted over networks, exploiting session hijacking vulnerabilities.
  • Suricata, a network intrusion prevention and analysis platform.
  • WhatPulse, a statistical (input, network, uptime) measuring application.
  • Xplico, a network forensics analysis tool (NFAT).
  • Scapy, a packet manipulation tool for computer networks, written in Python by Philippe Biondi.
  • DNS Sinkhole & Blacklisting, an on-line tool used to convert a list of unwanted, malicious, or suspicious domains to Microsoft Boot format and Bind format, written for Microsoft DNS server and Unix BIND DNS server.  


Wireshark is a network protocol analyzer for Unix and Windows. It lets you see what's happening on your network at a microscopic level. It is the de facto (and often de jure) standard across many industries and educational institutions.

Wireshark development thrives thanks to the contributions of networking experts across the globe. It is the continuation of a project that started in 1998.

Wireshark has a rich feature set which includes the following:

  • Deep inspection of hundreds of protocols, with more being added all the time
  • Live capture and offline analysis
  • Standard three-pane packet browser
  • Captured PCAP files (packet capture)
  • Multi-platform: Runs on Windows, Linux, OS X, Solaris, FreeBSD, NetBSD, and many others
  • Captured network data can be browsed via a GUI, or via the TTY-mode TShark utility
  • The most powerful display filters in the industry
  • Rich VoIP analysis
  • Read/write many different capture file formats: tcpdump (libpcap), Pcap NG, Catapult DCT2000, Cisco Secure IDS iplog, Microsoft Network Monitor, Network General Sniffer® (compressed and uncompressed), Sniffer® Pro, and NetXray®, Network Instruments Observer, NetScreen snoop, Novell LANalyzer, RADCOM WAN/LAN Analyzer, Shomiti/Finisar Surveyor, Tektronix K12xx, Visual Networks Visual UpTime, WildPackets EtherPeek/TokenPeek/AiroPeek, and many others
  • Capture files compressed with gzip can be decompressed on the fly
  • Live data can be read from Ethernet, IEEE 802.11, PPP/HDLC, ATM, Bluetooth, USB, Token Ring, Frame Relay, FDDI, and others (depending on your platform)
  • Decryption support for many protocols, including IPsec, ISAKMP, Kerberos, SNMPv3, SSL/TLS, WEP, and WPA/WPA2
  • Coloring rules can be applied to the packet list for quick, intuitive analysis
  • Output can be exported to XML, PostScript®, CSV, or plain text

Click to download Wireshark for free. 



Wireshark is the world’s leading open-source, freely available protocol analyzer. This course, taught by bestselling author and trainer Robert Shimonski, is designed to provide network administrators with the practical skills needed to solve problems, analyze data, view the inner workings of packets, and perform advanced configurations to solve tough issues.


A sample from INE's Wireshark Technologies Video Course. Wireshark is the world’s leading open-source, freely available protocol analyzer. 

In this video we will see how you can conduct a PCAP using Wireshark after exploring its GUI.