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In addition to solving the port problem of A, the serial number problem also needs to be paid attention to. The serial number corresponds to the sliding window. The fake TCP packet needs to be filled with the serial number. If the value of the serial number is not in the sliding window of B when it is sent to B before A, B will actively discard it. So we need to find the serial number that can fall into the sliding window between AB at that time. This can be solved violently, because the length of a sequence is 32 bits, and the value range is 0-4294967296. If the window size is like 65535 under Windows I caught in the above figure, I only need to divide, and I know that at most I only need to send 65537 (4294967296/65535=65537) packets to have a sequence number fall into the sliding window. The desired value can be calculated quickly by exhaustion on multiple control hosts.如果大哥仍旧一意孤行，那好……现在是危急之时，有些事情即便是不愿意，为难，也要不得已而为之，只能够答应下来。我看下次小鱼儿和花无缺之间必定又是一场轰轰烈烈的大火并。率先纵马而去。Friendly reminder: The above methods are risky, please use them carefully, and please back up important data during operation.冰儿也狠狠地瞪了众人一眼，跟了上去，留下厅中诸人面面相觑。Network Address Translate