After filtering the packets, focusing on these red and black colored packets may shorten the duration of the troubleshooting. When Wireshark detects potential problems, it colors them with red text on a black field. In Wireshark, any packet marked in black is considered to reflect some sort of issue.

Wireshark uses colors to help you identify the types of traffic at a glance. If you have a problem related the latency or packet loss, you may see much bigger delta times in the column.įocusing on Red and Black Colored Packets As seen below, there is no major distinction in the column. Following screenshot shows the latency (delay) between the packets in the delta column. If we want to use this column effectively, we need to filter packets properly. Click on the plus button to create a new column like below.ĭelta column is the time from the previous packet to the current packet in a conversation. Step-2: Wireshark Preferences window opens. Step-1: Right click on any column and navigate to “Column Preference”. Following steps show how to create a Ring Buffer.ĪLSO READ: How to install Pyrit in Kali Linux After starting the capture, Wireshark saves the packets to these files and once all files filled with packets, it goes back and overwrites the first one then the second one then the third one and so on. It works with specifying the number and size of files. There is a solution called Ring Buffer for this caveat, which limits the number and the size of the files. However, even if you save packets into multiple smaller files, you may run out of the free space on your hard drive with this way. Instead of using a single large capture file, Wireshark can save the packets into multiple smaller files. The larger the file gets the more time it takes to filter packets. However, waiting too much may create large trace files which are not suitable for filtering and statistic reports. If you do not know when the problem arises, you need to wait and capture the packets until you encounter it again. However, the article will contain most common and effective troubleshooting methods which we will help you learn how to use Wireshark.Ī problem may occur intermittently, which makes it difficult to diagnose. It is not possible to include every solution here. In this article, we will cover tips on how to find the problems that arise at any time.

Wireshark multiple filters