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The RST/ACK usually comes when you are trying to connect to a port that is not being listened to on that remote host. <br />
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And also, a RST/ACK is not an acknowledgement of a RST. When one side sends the RST, the socket is immediately closed and the other side similarly closes it's socket immediately when receiving the RST.
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The RST/ACK usually comes when you are trying to connect to a port that is not being listened to on that remote host.

And also, a RST/ACK is not an acknowledgement of a RST. When one side sends the RST, the socket is immediately closed and the other side similarly closes it's socket immediately when receiving the RST.

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in my case the RST/ACK came from third party ip source address, at the same time their error log shows connection exception. However , they then are able to connect soon after. So this is an ongoing intermittent issue. Based on the fact they sent an RST/ACK with no RST can I draw any conclusions on which end the issue is from. or could this be any network device in between?
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in my case the RST/ACK came from third party ip source address, at the same time their error log shows connection exception. However , they then are able to connect soon after. So this is an ongoing intermittent issue. Based on the fact they sent an RST/ACK with no RST can I draw any conclusions on which end the issue is from. or could this be any network device in between?

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Hi All , <br />
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My wireshark trace has only RST ACK , when I filter using display filter tcp.flags.reset==1 . In mostly all instances , the RST , ACk is from source ip - my side . What events can cause this ? Why is there no RST in being found , can I assume the RST is initiated from other side ?
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Hi All , 

My wireshark trace has only RST ACK , when I filter using display filter tcp.flags.reset==1 . In mostly all instances , the RST , ACk is from source ip - my side . What events can cause this ? Why is there no RST in being found , can I assume the RST is initiated from other side ?

RST ACK question

Network analysis is the process of identifying and remediating the processes and systems within a network, including performance, connectivity and security. The process is performed through the use of tools developed for monitoring and analyzing network activity. Network problems that involve finding an optimal way of doing something are studied under the name combinatorial optimization. Examples include network flow, shortest path problem, transport problem, transshipment problem, location problem, matching problem, assignment problem, packing problem, routing problem, Critical Path Analysis and PERT (Program Evaluation & Review Technique).

Network Analysis

Transmission Control Protocol/Internet Protocol (TCP/IP) is the set of networking protocols that define end-to-end connectivity specifying how data should be packeted, addressed, transmitted, routed and received at the destination. This functionality is organized into four abstraction layers which are used to sort all related protocols according to the scope of networking involved.