>>I expect 117.136.5.196/198 are the lwIP clients and 222.68.155.155 is the (non-lwIP) server? (Please provide such informations when sending a pcap trace!) Yes. Sorry, I missed to provide this informaiton.
117.136.6.196/198 are running in the small devie in the GPRS environment, and I could not create the pcap trace log. So your conclusion is: It is the server send 2 times reponse not lwIP receiving problem. Thanks. On Wed, Jan 11, 2012 at 6:35 PM, Simon Goldschmidt <[email protected]> wrote: > yueyue papa <[email protected]> wrote: > > lwIP IP 1.4.0 is used. I meet a duplicate data problem in two way TCP > > communication. The communication is in the GPRS network. > > > > Client is running lwIP. > > > > C--> S > > C<-- S inform 1 > > C--> S > > C<---S inform 2 > > > > In the normal, client should get inform 1, 2. > > > > But in certain case: client get 1, 1, 2 > > I expect 117.136.5.196/198 are the lwIP clients and 222.68.155.155 is the > (non-lwIP) server? (Please provide such informations when sending a pcap > trace!) > > In that case, there's nothing wrong with lwIP but the server simply sends > 2 responses. The packet trace shows no sequence errors in that region. > > Simon > -- > Empfehlen Sie GMX DSL Ihren Freunden und Bekannten und wir > belohnen Sie mit bis zu 50,- Euro! https://freundschaftswerbung.gmx.de > > _______________________________________________ > lwip-users mailing list > [email protected] > https://lists.nongnu.org/mailman/listinfo/lwip-users >
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