Re: [lwip-users] ping does not work

[Matthias Weisser]

>>> Kieran Mansley <address@hidden> schrieb am 21.05.2007 um 16:17:
> On Mon, 2007-05-21 at 15:52 +0200, Matthias Weisser wrote:
>> Hi
>> 
>> I am finally at that point that lwIP can receive and transmit ethernet
>> packets. I thought I first try a ping. But even that wont work. With
>> wireshark I see the ARP request and also the response from my target
>> device but then no ICMP ping is send to the device.
> 
> Are you trying to ping from somewhere else to the lwIP device, or from
> the lwIP device to somewhere else?

>From somewhere else (WinXP Pro) to the lwIP device. The ARP response looks 
>good doesn't it?

>> I have attached the ARP request/response which I captured with
>> wireshark. Maybe someone sees the problem.
> 
> Which of those two is the lwIP end?

The one responding to the ARP request.

> The only thing I can see that looks a bit odd is that the ARP request is
> shorter (42 bytes) than the minimum for an ethernet frame (60 bytes, I
> think).  However, this didn't seem to bother the other end as it send a
> reply to the request, so I doubt that is the problem.

I think Simon Goldschmidt cleared this point. So I don't think that I have to 
debug the ping application of windows.


Regards,
Matthias