dumpcap

Dumpcap is a command-line network packet capturing tool that is part of the Wireshark suite. It is designed to capture packets from a network interface and save them to a file for later analysis.

Here are some key features of dumpcap:

1. Packet capture: Dumpcap captures packets from a specified network interface or from a saved capture file.

2. Multiple file formats: It can save captured packets in different file formats, including pcapng, pcap, and pcap.gz. These files can be opened and analyzed with other packet analysis tools, such as Wireshark.

3. Filtering: It supports packet filtering based on various criteria like source/destination addresses, protocols, ports, etc. This allows the capture of relevant packets and helps reduce the amount of data stored.

4. Ring buffer mode: Dumpcap can be configured to use a ring buffer mode where it continuously captures packets and overwrites the oldest packets once the capture file reaches a specified size or time limit.

5. Remote capturing: It also supports capturing packets from remote network interfaces using the remote capture feature of Wireshark.

6. Command-line efficiency: Dumpcap can be easily integrated into scripts or automated tasks, making it a powerful tool for network troubleshooting, forensic analysis, and security monitoring.

Dumpcap is a versatile tool that provides efficient and flexible packet capturing capabilities, making it a valuable asset for network administrators, developers, security analysts, and anyone involved in network traffic analysis.