[ECOS] Deferring network initialisation
Fri Jan 16 19:44:00 GMT 2004
On Fri, Jan 16, 2004 at 12:12:33PM +0100, Robin Randhawa wrote:
> Greetings again.
> Andrew, my application wishes to prevent any ethernet frame from being
> transmitted until a certain event
> My observation (which seems to be flawed) was that irrespective of a call to
> init_all_network_interfaces (), a gratuitous ARP request was being made by
> the stack. I assumed that this was being done by a static constructor at init
> Is it correct to assume then, that ethernet frames would be transmitted out
> only after a call to init_all_network_interfaces () and that nothing else
> would cause any ethernet transmission ?
Yes, thats a safe assumption. The stack does not even know it has an
ethernet device until init_all_network_interfaces() has been called.
As soon as you do call init_all_network_interfaces() it will send an
arp request. It arps the IP address of its own interface to find out
if some other device is using that address. That could be whats what
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