@Hari: I'm facing similar problems on eCos - Lwip - PPP - TCP. If you could follow this thread:
http://lists.gnu.org/archive/html/lwip-users/2007-02/msg00044.html and probably get back to me regarding the same. Regards, Ashish Anand Research Intern - Dept. of Electrical Engineering Indian Institute of Technology, Delhi http://dudafunk.myvnc.com Hari-10 wrote: > > Thanks Kieran..Would look in to it > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > Kieran Mansley > Sent: Friday, September 15, 2006 2:11 PM > To: Mailing list for lwIP users > Subject: RE: [lwip-users] LWIP TCP issues > > On Fri, 2006-09-15 at 09:02 +0100, Kieran Mansley wrote: >> > > >> > > We are using LWIP in an ecos based environment. We are having >> > > problems with LWIP TCP. The udp part is communicating successfully to >> > > a external TCP/IP stack from our system. But while using TCP client >> to >> > > connect to a external TCP server from with in the system, it is not >> > > working. The tcp_connect results in a SYNC to the external server. >> The >> > > server acks with a SYNC -ACK. Then a RST goes from the LWIP instead >> of >> > > an ACK to complete the initialization handshake. >> >> Hmm, that is strange. > > Something else I've just noticed. You're sending ethernet frames that > are less that 60 bytes long on the wire, which I think is invalid - take > a look at packets 27 and 28: seemingly identical ARP replies, but one is > 48 bytes, the other is 60 bytes. I wonder, could you have two devices > configured with the same MAC address on you network? That could explain > the problems. > > Kieran > > > > > > _______________________________________________ > lwip-users mailing list > [email protected] > http://lists.nongnu.org/mailman/listinfo/lwip-users > > > > _______________________________________________ > lwip-users mailing list > [email protected] > http://lists.nongnu.org/mailman/listinfo/lwip-users > > -- View this message in context: http://www.nabble.com/LWIP-TCP-issues-tf2275624.html#a9305045 Sent from the lwip-users mailing list archive at Nabble.com. _______________________________________________ lwip-users mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/lwip-users
