Re: [lwip-users] Re: Checksum calculations

[Goldschmidt Simon]

>On Thu, 2008-01-24 at 09:01 +0000, Kieran Mansley wrote:
>> On Thu, 2008-01-24 at 02:06 +0530, Sourath Roy wrote:
>> > Am I missing something here? 
>> 
>> If that is the case your application changing the data after it has 
>> told lwIP to send it is the most likely cause.
> 
> Sorry - that was completely wrong.  If you application was changing
> the data you would expect the retransmissions to get the correct
> checksum when it is recalculated.

It would? I thoght checksums are calculated only when creating a fresh
segment, not when moving this segment between the lists
(unsent/unacked)?
I think your previous statement made sense!

Simon