tcpdump Alternatives

Wireshark

Wireshark is the world's foremost network protocol analyzer. It lets you capture and interactively browse the traffic running on a computer network. It is the de facto (and often de jure) standard across many industries and educational institutions.

Features:

• Detailed packet analysis
• Support for Android Things
• Network Monitoring
• Network usage history
• Sniffer

NetworkMiner

NetworkMiner is an open source Network Forensic Analysis Tool (NFAT) for Windows (but also works in Linux / Mac OS X / FreeBSD). NetworkMiner can be used as a passive network sniffer/packet capturing tool in order to detect operating systems, sessions, hostnames, open ports etc. without putting any traffic on the network. NetworkMiner can also parse PCAP files for off-line analysis and to regenerate/reassemble transmitted files and certificates from PCAP files.

Features:

• Network Monitoring
• Portable
• Sniffer

SmartSniff

SmartSniff is a packet sniffer that capture TCP/IP packets and display them as sequence of conversations between clients and servers. You can view the TCP/IP conversations in Ascii mode (for text-based protocols, like HTTP, SMTP, POP3 and FTP) or as hex dump (for non-text base protocols, like DNS). Application can capture TCP/IP packets on your network without installing a capture driver (works only for Windows 2000/XP or greater).

Features:

• Portable
• Sniffer
• Sockets

Sysdig

Sysdig is open source, system-level exploration: capture system state and activity from a running Linux instance, then save, filter and analyze. Think of it as strace + tcpdump + lsof + awesome sauce. With a little Lua cherry on top.

Features:

• Application Monitoring
• Container monitoring
• Cpu monitoring
• Memory Monitoring

Ethereal

Ethereal® is used by network professionals around the world for troubleshooting, analysis, software and protocol development, and education. It has all of the standard features you would expect in a protocol analyzer, and several features not seen in any other product. Its open source license allows talented experts in the networking community to add enhancements. It runs on all popular computing platforms, including Unix, Linux, and Windows.

Colasoft Capsa

Colasoft network packet sniffer or network analyzer software for Windows platform, sniff packets, monitor activities and analyze protocols, best tool for network monitoring and troubleshooting, Free trial available, download now.

PacketSled

PacketSled is next generation network forensics and breach detection. Continuously monitor for advanced threats and policy violations missed by other defenses, then analyze and remediate in record time. PacketSled provides three types of threat detection: IOC signature matching, file extraction and analysis and behavioral analytics.

Features:

• Continuous Monitoring
• Network Monitoring

WebSiteSniffer

WebSiteSniffer is a packet sniffer tool that captures all Web site files downloaded by your Web browser while browsing the Internet, and stores them on your hard drive under the folder that you choose.