[En-Nut-Discussion] Trunk revision 3168

[Harald Kipp]

In early days Nut/Net automatically retried ARP requests on timeouts.
After some discussions with Michael, I agreed, that this is not what
RFC-826 describes. Instead, the upper layers should to the retry.

In order to maintain backward compatibility, this had been made
configurable and the default had been set to

#define MAX_ARPREQUESTS 1

However, Rev-3168 re-established ARP retries

#define MAX_ARPREQUESTS 5

Note, that it is possible to change the number of retries in the
Configurator.

Regards,

Harald