How To Use Wireshark Network Analyzer

The most basic way to apply a filter is by typing it into the filter box at the top of the window and clicking apply or pressing enter.

How to use wireshark network analyzer. This will reduce traffic to a minimum so you can see what is happening on your network more clearly. Select file save as or choose an export option to record the capture. Once the program is launched select the network interface to capture and click on the sharkfin at the top left of the application right. That s where wireshark s filters come in. 4 if you not an network expertise then you will feel very difficult to understand these outputs but as a system admin you check few things using wireshark filers.

Once wireshark is installed launch the program to begin. Select the shark fin on the left side of the wireshark toolbar press ctrl e or double click the network. Wireshark lets you listen to a live network after you establish a connection to it and capture and inspect packets on the fly. For example type dns and you ll see only dns packets. The most useful capture options we will consider are.

For an example if you want to see only dropped packets from these snoop data use tcp analysis lost segment filter just type these filter string in that wireshark tab and apply. As a network engineer or ethical hacker you can use wireshark to debug and secure your networks. In this article we will use eth0 but you can choose another one if you wish. Wireshark to a network engineer is similar to a microscope for a biologist. When you start typing wireshark will help you autocomplete your filter.

Computers communicate using networks. These networks could be on a local area network lan or exposed to the internet. Network sniffers are programs that capture low level package data that is transmitted over a network. If you want to use wireshark to inspect your network and analyze all active traffic then you need to close down all active applications on your network. An attacker can analyze this information to discover valuable information such as user ids and passwords.