Re: wm DAD duplicate address

[Patrick Welche <prlw1%cam.ac.uk@localhost>]

On Tue, Feb 21, 2017 at 05:51:49PM +0000, Roy Marples wrote:
> On 21/02/2017 12:32, Patrick Welche wrote:
> > On Tue, Feb 21, 2017 at 12:25:00PM +0000, Patrick Welche wrote:
> >> wm2: DAD defended address 0.0.0.0 from 00:15:17:1a:48:1d
> >> wm2: DAD defence failed for 0.0.0.0 from 00:15:17:1a:48:1d
> >> wm2: DAD duplicate address 0.0.0.0 from 00:15:17:1a:48:1d
> > ...
> > Reverse Request who-is 00:15:17:22:6c:e0 tell 00:15:17:22:6c:e0, length 46
> > Request who-has 169.254.95.254 tell 169.254.95.254, length 28
> > 
> > etc., and no 0.0.0.0 to be seen anywhere by tcpdump
> 
> Does this happen with prior kernels at all?
> I'm curious if reverting sys/netinet/if_arp.c to r.1.242 or r1.241 is
> enough to solve it.

I tried

http://nyftp.netbsd.org/pub/NetBSD-daily/HEAD/201702191640Z/amd64/binary/kernel/netbsd-GENERIC.gz

as the netboot kernel, which has if_arp.c 1.242 and that also failed to
nfsboot.

(Presumably that is the side you are interested in? The nfs server
also has 1.242)

Building an older kernel...


P