[lwip-users] that's ok ,could someone show me a good rap-api udp receiving software ?

[the_gadfly]

That's ok , the code sent udp messages successfully when I  turning on the
ARP_QUEUEING .According  the Ethereal ,the message is correct including src
,dest.and checksum.
However ,my udp receiving software did not work well.so could some one help
me ?

Best Regards
the_gadfly

Simon Goldschmidt wrote:
> 
> 
>> hi:
>> this is my code,modified form stand-alone lwip example web server. I am
>> trying to send messages through UDP. But all it is sending are ARP's.
> 
> That's perfectly OK: before the stack can actually send the UDP packet, it
> has to know the target MAC address. Since it doesn't know it, yet, ARP
> request packets are sent.
> 
> The stack should receive ARP response packets and (if ARP queueing is
> turned on), the original UDP packets should be sent (if ARP queueing is
> turned off, the old packets are not sent - udp_send() returns an error -
> but the next packets can be sent).
> 
> So the question is: are there any ARP responses and if so, why doesn't the
> stack handle them. You should see the ARP response packets if they come
> from the same PC you are running wireshark on.
> 
> Simon
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