[lwip-users] Re: [lwip] A problem with Windows NT, not with 95/98. Why?

[Andrea Olivotto]

02/05/02 17.49.06, Fabio Fumi <address@hidden> wrote:

>After a bit of debugging, these are examples of the
>'strange' IP headers: 
>
>75 00 0169 63db 4000
>80 00 6014 
>192.168.0.1 
>192.168.0.2
>
>EF 06 B441 0006 0000
>FF 06 663A
>192.168.0.2 
>192.168.0.1
>
>Note version 7 and 0xE, which is different from
>expected 4. How is it possible? Version 0xE has also
>swapped source and destination addresses , even if
>those packets are both SENT by Win NT!
>
>Can someone provide a reference of the different IP
>versions? In what seemed to me a very updated site
>(http://www.protocols.com/pbook/tcpip.htm), I didn't
>find other than 4 and 6...
>
> thanks 
>  Fabio


Sorry Fabio, I can't help you.
I only suggest you to check serial baudrate timing (no more than 3% from the 
nominal value), SLIP routines 
(I everytime forget something... try with some packets with 220, 219, 221), 
array overflow, memory 
alignment.

I guess that it's a stupid and macroscopic bug, of the same type of those who 
everyday I have to fight 
against...

Good luck,


Andrea





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