Re: [lwip-users] Data sending problem over TCP

[Kieran Mansley]

On Wed, 2011-06-22 at 14:24 +0530, Sanchayan wrote:
> 
>      err = tcp_connect( my_pcb, &ipaddr, 2101, NULL );
>   
>      write_error = tcp_write( my_pcb, buff, 6,
> 0 );                                     // I Get a return value of 0
> for both err and write_error when i check in my Keil debugger for MCU

OK, so the connection is being established successfully, but then you
say you can't see any data packets in wireshark.  Do you see the TCP
connection being established in wireshark (i.e. the SYN, SYN-ACK, ACK
sequence)?  Perhaps you could show us an example wireshark capture?

Kieran