Reading through the following passage from Wiki on TCP Reset I have a question:
"When used as designed this can be a useful tool. One common application is the scenario where a computer (we'll call it computer A) crashes while a TCP connection is in progress. The computer on the other end (computer B) will continue to send TCP packets since it does not know computer A has crashed. When computer A reboots, it will then receive packets from the old pre-crash connection. Computer A has no context for these packets and no way of knowing what to do with them, so it might send a TCP reset to the sender of the packets - computer B. This reset lets computer B know that the connection is no longer working. The user on computer B can now try another connection or take other action."
In the above case what would Seq and Ack numbers be? Since computer A has no context of the previous connection on what basis would reset happen and how can B ascertain that the Reset is for the actual connection that it thinks is still maintained? Why can't it be for any other connection?