It can be run on different operating systems including Windows, macOS, and Linux distributions. It contains deep inspection of hundreds of network modules with the ability of live capture as well as offline analysis. Some of the important features that make Wireshark, a popular network analyzer are: In this write-up, we will explore the method of Wireshark installation with its configuration on Ubuntu, but before proceeding with it, we will first find out some of the latest features of Wireshark. It is mostly used in the industries and especially in educational institutions as it helps the students to understand the information related to the network protocols. -w − write the output to the file mycapture identifier.Wireshark is an analyzer that is used to analyze the network protocols at a microscopic level and helps you to determine what is happening in it. -b files: − the number of files to capture before overwriting the oldest. -b filesize: − file size in kB before starting a new. -i − interface number (listed from dumpcap -D). # dumpcap -i 1 -b filesize:100000 -b files:20 -w mycapture.pcapng pcap files of 100MB each, replacing the oldest file with the twenty-first file and so on… This allows a continuous capture without exhausting disk space. The following example will provide a ringbuffer capture. To see all dumpcap options, use the -h flag. Used in combination with tmux will allow the capture of packets in a detached session. Tcp.port=80||tcp.port=3306||tcp.port=443ĭumpcap is part of Wireshark and can be used for capturing packets without the GUI. This will filter traffic within any of the private network spaces. To only see LAN traffic and no internet traffic, run If you would like to see all the incoming and outgoing traffic for a specific address, enter display filter ip.addr = 1.2.3.4, replacing 1.2.3.4 with the relevant IP address.Įxclude packets from a specific IP address ip.addr != 1.2.3.4. If you would like to see all the incoming traffic for a specific address, enter display filter ip.src = 1.2.3.4, replacing 1.2.3.4 with the IP address the incoming traffic is being sent to. If you would like to see all the traffic going to a specific address, enter display filter ip.dst = 1.2.3.4, replacing 1.2.3.4 with the IP address the outgoing traffic is being sent to. If you want to see all the current UDP packets, type udp into the Filter bar or in the CLI, enter: 
If you want to see all the current TCP packets, type tcp into the Filter bar or in the CLI, enter: For display filters, see wireshark-filter(4).
Note: To learn the capture filter syntax, see pcap-filter(7).
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