[lwip-devel] Re: generate a broadcast answer...

[Piero 74]

...i'm thinking:

after a first arp request from pc (ping or tcp connect) i will have a
couple ip-macAddress in my arp table.
can i force a refresh in
some way?

any idea?

thanks
Piero

2009/3/9, Piero 74 <address@hidden>:
> Hi all.
>
> For security reasons, i have to be sure that no trouble is present in
> ethernet HW in my board.
> In my driver (loop in ethernetif.c), if i don't receive packets for 30
> seconds i will reset the lowlevel driver.
> Normally, if the board is connected to a switch, always there are broadcast
> packets from other devices on LAN, so reset doesn't occur.
> But if i have a board connected directly to a pc (for example a laptop),
> there is no traffic.
>
> I want to force a packet answer from a pc...
> How i can send a packet which force pc stack to send back a broadcast
> packet
> (arp for example)?
> Any idea?
>
> Thanks
> Piero
>