Ethereal

Ethereal® is used by network professionals around the world for troubleshooting, analysis…

21 Alternatives To Ethereal

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Cocoa Packet Analyzer

Native Cocoa app for capturing and analyzing packets.

Ettercap

Ettercap is a suite for man in the middle attacks on LAN.

Fiddler

Fiddler is a debugging program for websites.

Homedale

With Homedale you can search for Wi-Fi / WLAN Access Points and monitor their signal strength.

Intercepter-NG

Intercepter-NG is a multifunctional network toolkit for various types of IT specialists.

Kismet

Kismet is an 802.11 layer2 wireless network detector, sniffer, and intrusion detection system.
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LANGuardian

NetFort LANGuardian is a network visibility solution which uses deep packet inspection to monitor, troubleshoot, and report on user & network activity.
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ManageEngine Network Configuration Manager

Network Configuration Manager is a multi-vendor network change, configuration and compliance management solution for switches and routers.

NetStumbler

Official source of information about Netstumbler.

NetworkMiner

NetworkMiner is a Network Forensic Analysis Tool (NFAT) for Windows.

Nmap

Nmap Free Security Scanner, Port Scanner, & Network Exploration Tool. Download open source software for Linux, Windows, UNIX, FreeBSD, etc.

PsPing

PsPing is a command-line utility for measuring network performance.

Ubiquiti Network Management System

Ubiquiti Network Management System manages all the EdgeMAX, EdgeSwitch, airMAX and UFiber devices.

WiFi Explorer

WiFi Explorer is a tool to scan, find, and troubleshoot wireless networks.
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Wifi Analyzer

Wifi Analyzer is a handy tool which helps you to select a better channel for your wireless router.
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Wireshark

Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.

inSSIDer

inSSIDer Essential makes it easy to maintain small business WiFi.

netcat

Netcat is a featured networking utility which reads and writes data across network connections…
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snort

Snort is a free and open source network intrusion prevention system.
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tcpdump

tcpdump is a common packet analyzer that runs under the command line.

tcpflow

tcpflow, a TCP Flow Recorder, is a program that captures data transmitted as part of TCP…