[lwip-users] Upgrading to 0.6.1

[David Ryan]

Hi all,

I've finally found time to do some testing of 0.6.1 since upgrading from 
0.6.0-rc1 with my ps2 implementation.  I first discovered that I needed 
to set netif->hwaddr_len or ARPs would return with mostly junk.  After 
resolving that issue I came up against a very strange issue...

My basic test is to connect to an echo server and then telnet to it from 
windows, and type in a few characters.  What I found was that a single 
character would result in a random number of characters in return.  I 
first checked my echo server to ensure that it was receiving one 
character and sending one character, which it did.  After that I started 
checking with Ethereal.  I found the following

pc    ----->  'x'  ------>   ps2        single character sent to ps2.
pc    <------ 'x' --------   ps2        single character returned.
pc    ------- ACK  ----> ps2        packet acknowledged
pc    <----- 'xxxx'  ------ ps2         random number of characters 
returned in new packet.
pc    -------- ACK -----> ps2        packet acknowledged

This was consistant with every packet sent.  My first assumption is that 
this is probably related to how the driver should interface with pbufs. 
 I haven't yet changed the driver from 0.6.0 code.   Is this likely, or 
should I be looking deeper into lwip?

If you think it is the driver, can someone suggest which driver I should 
base my code?

What other changes from 0.6.0 to 0.6.1 should I look out for?

Thanks,
David.