what happens when a host receives a TCP segment whose port number or source IP address do not match with any of the ongoing sockets in the host?
one of the answer i think is an ICMP destination unreachable message will be transmitted.
but could it be a possibility that the host will wait for a particular time period for the host to start listening to that port?(in case of no ongoing port of the number).
how the answer would change in case of UDP connection.