Assume a TCP connection is setup between hosts A and B. At some point in time we caputre the following exchange of seements; host A->B, seq.#=148, Ack#=211, Ack flag is set, header length = 20, rwnd = 4000, and payload is 100 bytes; and host B->A, Seq#=211, ACK#=249, Ack flag is set, header length = 20, rwnd = 2000. Is there a mistake in the segment field values of these segments? Why?