TROUBLESHOOTING A WEIRD TCP HANDSHAKE

This is a troubleshooting scenario based on an issue that happened in a production network, namely getting a RST as the third packet in the 3-way handshake.

The flow of this article is as follows: first, we will look at the topology and how the problem manifested itself, then dig deeper and find out the issue. Lastly, we will configure ...

read more>