Daniel Pittman a écrit :
you can't assign 0.0.0.0 to an interface in Linux, so the DHCP client uses a "packet socket" -- reading direct from the interface, bypassing the firewall.That sounds consistant. But what about the DHCP server side ?It made the ISC DHCP developers very unhappy when it changed within Linux, and I believe that the same is required on the server side because you cannot assign 0.0.0.0 as a valid source address their either.
I guess this is not a problem for a DHCP server since it uses its own source IP address and never sends packets with 0.0.0.0 as a source address.