Re: Suggestion(?): new ioctl: "resolve hw address and update arp cache"

Richard B. Johnson (root@chaos.analogic.com)
Tue, 11 May 1999 13:00:48 -0400 (EDT)


On Tue, 11 May 1999, Ralf Baechle wrote:

> On Mon, May 10, 1999 at 09:25:53PM +0100, Alan Cox wrote:
>
> > > There could be a new ioctl which returns the arp entry for an ip address
> > > even if it's not in arp cache? If it's not in cache then kernel could send
> > > a arp message and find it out. Or perhaps it could be better to include it
> >
> > So could your application ...
>
> I think he is interested in doing this in an atomic fashion which doesn't
> really make sense either.
>
> Ralf
>

Any attempt to communicate with another network node, if successful,
will result in an arp-cache entry that takes some time to expire.
However, that entry may be the hardware address of a router or even a
smart switch.

Cheers,
Dick Johnson
***** FILE SYSTEM WAS MODIFIED *****
Penguin : Linux version 2.2.6 on an i686 machine (400.59 BogoMips).
Warning : It's hard to remain at the trailing edge of technology.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/