Bug in ARP requests

[Max Khon]

hi, there!

On Fri, Apr 11, 2003 at 04:10:56PM +0900, Motonori Shindo wrote:

> From: Andre Oppermann <oppermann at pipeline.ch>
> Subject: Bug in ARP requests
> Date: Wed, 09 Apr 2003 15:33:21 +0200
> 
> > I got hit by this pretty hard when I connected a FreeBSD/Zebra box
> > to AMSIX. Appearently the Cisco and Juniper boxes don't answer to
> > broken ARP requests if the target hardware address field is not set
> > to NULL but filled with random memory junk. While debugging this we
> > got really confused by the tcpdumps... Ethereal saved the day because
> > it has a much nicer display than tcpdump.
> 
> I also came accross this problem when I was testing the equipment
> (wireless access point, in fact) made by the company I currently work
> for. At that time, I thought that it was specific my company's
> equipment, but now I'm amezed to know that there are so many
> networking equipments that don't accept such a bogus ARP Request.
> 
> BTW, tcpdump prints out the target hardware address in ARP Request if
> it isn't all zero and that made me realized that the problem was
> caused by FreeBSD's ARP request. tcpdump saved a day for me:-)

ok, rev 1.97 MFC'ed a few minutes ago

/fjoe