Messages in this thread | | | Date | Tue, 19 Aug 2003 11:13:58 -0700 | From | "David S. Miller" <> | Subject | Re: [2.4 PATCH] bugfix: ARP respond on all devices |
| |
On Tue, 19 Aug 2003 19:16:18 +0100 Richard Underwood <richard@aspectgroup.co.uk> wrote:
> David S. Miller wrote: > > Ok, then how would you propose to be able to send > > packets out an interface _before_ we have addresses > > assigned to it? > > > IP packets you mean? You don't? ;) It would depend on why you're > doing it naturally. Mostly, I'd have thought that if a host doesn't have an > IP number it doesn't get to use ARP.
Of course it gets to use ARP, nothing prevents this.
If I know that IP X has my configuration information, I have every right to send X a packet from zero-net to ask for that information before I have any IP addresses attached to the interface.
This is nothing wrong nor strange about this and we've supported it for years.
Also, when one specifies a specific device in an output address and we cannot find the IP part of the address in the routing tables, we still procure a valid route for the requester.
Besides normal IP addresses, multicast tools use these facilities. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |