IPv6 duplicate DAD packets from Android clients?

[Steve Simlo (ssimlo)]

Hi Phil - I have pinged local contacts in Cisco UK to ask them to step in and assist here

If you get an SR open with TAC it would be very helpful if that has not already happened ?

Many thanks 

Steve Simlo
ssimlo at cisco.com
IPv6 PM - Cisco NOSTG

On 8 Oct 2013, at 08:19, Phil Mayers <p.mayers at imperial.ac.uk> wrote:

> On 10/08/2013 01:02 AM, Erik Kline wrote:
> 
>> It could be a bug, i.e. a client trying to do an NS for the router but
>> for some reason not using its link-local address (whacky race
>> condition where DAD for link-local hasn't completed?).
>> 
> 
> Maybe; we've got a lot of Android clients on the network, and I'd assumed any bug would be more widespread, but I guess given the diversity of hardware and OS fiddling that goes on, it might be feasible that only 2 of ~3000 hosts would be affected.
> 
> Maybe I'll try and identity the client OSes more accurately.