Hi Sylvain! Thanks for the prompt reply, much appreciated. The version in use is HEAD - july/2015. You asked about incoming bytestream level check. But I understand that the exception is happening at output level, in packets generated by the lwip core. Am I right? Remembering that the UDP protocol use works fine what could validate the serial interface (connection between nodes).
Thanks again. 2016-01-05 17:51 GMT-02:00 Sylvain Rochet <[email protected]>: > Hi Norberto, > > On Tue, Jan 05, 2016 at 11:26:35AM -0200, Norberto R. de Goes Jr. wrote: > > How are you doing? > > > > I am facing a problem in the use PPP-lwip. > > I have a application (app) using lwip stack. The app implements an echo > > message server (messages replier). > > The connection is through the PPP protocol (serial interface) no ethernet > > conection. > > When UDP messages are exchanged all is working fine. But when TCP is > used, > > after the second message exchanged, the following error is throwed by the > > lwip: > > > > Assertion "RST not expected here!" failed at line 1033 in > > ../src/lwip_src/lwip/src/core/tcp_out.c > > Which lwIP version are you using ? If Git, what's your HEAD hash ? We > don't assert on corrupted packets anymore (we try to remove all asserts > that can be remotely-triggered), it looks like an old code. > > At first sight, I don't think PPP is related to the problem here, did > you check at the bytestream level that it is actually a wrongly > formatted incoming TCP packet ? If yes, there is not much we can do > except dropping the packet. > > Sylvain > > _______________________________________________ > lwip-users mailing list > [email protected] > https://lists.nongnu.org/mailman/listinfo/lwip-users > -- Norberto R. de Goes Jr. CPqD - DRC Tel.: +55 19 3705-4241 / Fax: +55 19 3705-6125 [email protected] <[email protected]> www.cpqd.com.br
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