Piero,
Mostly out of curiosity, what security issue is prevented or
improved by resetting after 30 seconds of inactivity?
There will always be security problems (notably someone spoofing
your device) that you cannot do anything to improve security on or prevent.
Bill
From:
address@hidden
[mailto:address@hidden On Behalf
Of Piero 74
Sent: Monday, March 09, 2009 11:28 AM
To: lwip-devel
Subject: [lwip-devel] generate a broadcast answer...
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