Re: [lwip-users] Bug on lwIP TCP section (or HTTP client from contrib)?

[Enrico Murador - Research & Development - CET]

Dear Sergio,

On 18/11/2015 15:42, Sergio R. Caprile wrote:
> I see wrong TCP checksums on your client side, in both capture files;
> but that is common when capturing on the same machine and it has hw
> checksum offloading
True, the TCP checksum check option is disabled (by default?) on my 
Wireshark.
> I see your point, your description is quite clear to me now, however, I
> don't see that as a problem since the connection has already been closed
> anyway. Maybe someone in the group of lwIP developers wants to address
> this, I'm not one of them and I don't see this as an issue or a
> potential one, so I won't get involved into tracing it.
> Count on me if you have further stuff to check.
> Ciao
I agree.
I'm still wondering if it could be more safe to remove that call to 
tcp_eof() inside tcp_send(), though (before sending last data, I mean). 
Maybe there could be some other "synchronization" issues I'm not yet 
aware of.

Thank you for your help!
Enrico