![filter tcp retransmission wireshark filter tcp retransmission wireshark](https://osqa-ask.wireshark.org/upfiles/sslscan_small.png)
This rule doesn’t apply to this packet as it’s a SYN packet, and the SYN is considered as 1 byte, so the next sequence number increased by 1 seven if there is no data on the packet.
![filter tcp retransmission wireshark filter tcp retransmission wireshark](https://soma-engineering.com/wp-content/uploads/2018/12/basic-capturing-and-filtering/12.jpg)
![filter tcp retransmission wireshark filter tcp retransmission wireshark](https://osqa-ask.wireshark.org/upfiles/lostSegment_2_Pzlh8FO.jpg)
This can happen for example if you are capturing at the server-side and there is more than one client connected to the server, then each connection will have its sequence number. If one of these values changed, the sequence number will differ. It’s only a Wireshark representation of the connection 4 values (source address, source port, destination address, and destination port).
Filter tcp retransmission wireshark how to#
Basic knowledge of how to use Wireshark is needed.
Filter tcp retransmission wireshark series#
This is the first article in a series that illustrates the basics of the TCP protocol and its analysis using Wireshark. HTTP, HTTPS, and FTP are only a few examples from the list. TCP is a reliable connection-based protocol that is used by many of the application layer protocols we use every day.