[ECOS]problem with recent port of lwip

[Bob Brusa]

Am 21.09.2009, 14:29 Uhr, schrieb Bob Brusa <bob.brusa@gmail.com>:

> Am 18.09.2009, 14:57 Uhr, schrieb Simon Kallweit  
> <simon.kallweit@intefo.ch>:
>
>>
>> These sys_timeout log entries are normal, as far as I know. They are  
>> output when lwip checks for timeouts on blocking operations. You should  
>> probably just disable "System debugging" in the debug options.
>>
>>>  Further: How do I send tcp-packet to port 7. Will a browser where I  
>>> enter 192.168.0.10:7 send a tcp-package to port 7?
>>
>> Use a telnet session. You should get echo's of whatever you send to the  
>> target. Note that telnet sends data when you hit the 'return' key.
>>
>> Simon
>
> Hi
> I have continued to experiment and I am happy to report that the test  
> program httpd_sequential.c builds and executes. But only if I build the  
> library with a fixed IP-address for my board. When changing this to  
> DHCP, I can no longer reach the http-server running on my board.
>
> Using wireshark, I can see (see attachment) that the there is a hopeful  
> beginning of the DHCP configuration process of my board. But there is  
> never a fitting answer from the ZyXEL which implements the DHCP-server  
> on our LAN - at least as far as I see it, given my rather limited  
> experience with network issues..... Has anyone out there a possible  
> explanation what's going wrong here?
>     Robert


More to the above:
In the debug output of the program I see that there is a package to my IP  
192.168.0.10, but it is dropped because of a checksum error. I do not know  
why I cannot see this package in wireshark - and I do not know why there  
is a checksum error - obviously a consistent one which repeats each time I  
run the program. I think I have to check memory usage in my  
configuration.....
    Robert

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