Re: [lwip-users] TCP Checksum errors.

[Jonathan Larmour]

Nick Thomas wrote:
> Hi,
> 
> I know this isn't much to go on, but I think I am getting TCP checksum
> errors.
> 
> I am using an ST7101 chip, running OS21.
> 
> I have got much of the LWIP stack running, DHCP works and DNS resolution is
> fine (I think both of these use UDP).
> 
> But, the httpd example is giving wireshark some TCP Checksum errors, and the
> PC based browsers doesn't get the response from the HTTP GET request.

wireshark is known to give TCP checksum errors with valid packets (I think
but am not sure it depends on whether checksum offloading is enabled on the
host). Don't _necessarily_ read too much into failures.

Jifl
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