Failed to configure IPSec on Windows server. I am not sure what wrong I did, but I am trying to block certain incoming connections. That is still accessible via rdp. I do not want to completely block. Actually I am novice is IPsec configuration. I do not understand why this happen. I want to secure the traffic. Later on my friend notice some bad spi error in the event log file. We had build up a new server on the lan, and want to limit the access via IPSec. What should I do.