RST (reset) packets

Often, there will be situations such as the server daemon is not available/running, the server is not able to process your request due to overload, you are restricted to interact with the server, or the port you are trying to connect to is not ready/open for connections. The RST packet basically denotes the abrupt rejection of a connection request.

In our scenario, the server daemon is not running and the client is trying to communicate; as a result, it receives RST packets in return for every SYN request sent.  The client tries visiting the web page just once, but Wireshark captures more than one SYN and RST packet because every browser performs a different number of attempts over a non-responding or a closed socket at ...

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