Re: [lwip-devel] a question about arp

[Christiaan Simons]

Hi Jon,

> I found a prolem while looking at the source code about LWIP. The
> sending function will simply return without doing any operation if
> can not find corresponding MAC address in arp cache.But the usual
> way for handling this is to record this packet,and send the packet
> once again until the arp reply reaches.But now your solution will
> make the packet lost,is this a bug ?

Define  ARP_QUEUEING to be 1 in your lwipopts.h,
the etharp_tmr() will replay the pending packet.

Please use lwip-users for these questions.

Christiaan Simons

Hardware Designer
Axon Digital Design

http://www.axon.tv