Hello everyone:
i encounter a problem when i use tcp transport.
No.TimeSourceDestinationProtocolLengthInfo
(1)2562.210092192.168.1.20192.168.1.60TCP571[TCP segment of a reassembled PDU]
(2)2572.212896192.168.1.60192.168.1.20TCP64[TCP segment of a reassembled PDU]
(3)2582.414096192.168.1.20192.168.1.60TCP5456864 → cisco-sccp [ACK] Seq=65157
Ack=1288 Win=16054 Len=0
(4)2597.214311192.168.1.20192.168.1.60TCP423[TCP segment of a reassembled PDU]
192.168.1.20 is host(Windows) and 192.168.1.60 is my target board(lwip).
in (1) and (2), transport is normal.
suddenly, a ack(3) come, then transport terminal
after about five seconds later, host retransmission.
why do not lwip answer the ack(3) ? thanks anyway
With kind regards
-------------------------------
田智洲
TEL : 15501024303
E-mail : [email protected]
Address : Haidian,Beijing,100091,China
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