Another Ethernet problem for Thomas :) Cont.
Thomas Doerfler
Thomas.Doerfler at embedded-brains.de
Wed Jan 30 13:57:08 UTC 2008
Leon Pollak schrieb:
> One more detail discovered only now:
>
> If I put the delay of 7s (!!) before I start to open the UDP socket, the first
> packet always arrives!
> The less time delay is insufficient.
>
> What's this, gurus!
DHCP?
How do you configure the IP address (and/or MAC address?) of your
system? If it is configured by BOOTP/DHCP, it may take so long until
your interface gets a reply and can configure itself (and the routing
table) properly.
What do you get, when your print the interface statistics directly after
network startup?
And try to monitor which broadcasts are transmitted in the 7 seconds!
wkr,
Thomas.
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