Okay, this is good information. I will look into it now.
Thanks,
--Qing
> -Original Message-
> From: Ryan Stone [mailto:ryst...@gmail.com]
> Sent: Thursday, April 26, 2012 7:03 AM
> To: Li, Qing
> Cc: freebsd-net
> Subject: Re: Removing an IPv6 address does not rem
On Wed, Apr 25, 2012 at 3:59 AM, Li, Qing wrote:
> The patch is located at
>
> http://people.freebsd.org/~qingli/nd6_prefix.diff
>
> Please give it a try. I did only basic testing as of now and
> will do more tomorrow.
>
> --Qing
I tested this last night. Unfortunately this seems to be vulnera
alf Of Li, Qing
> Sent: Tuesday, April 10, 2012 5:43 PM
> To: Ryan Stone
> Cc: freebsd-net
> Subject: RE: Removing an IPv6 address does not remove NDP entries on
> that subnet
>
> >
> > [rstone@vm-head ~]ndp -a
> > Neighbor Linkl
>
> [rstone@vm-head ~]ndp -a
> Neighbor Linklayer Address Netif ExpireS
> Flags
> 1::2 08:00:27:1e:b8:16em0 7sR
> fe80::a00:27ff:fefa:8732%em0 08:00:27:fa:87:32em0 permanent R
> rstone@vm-head ~]uname -a
> Fre
On Mon, Apr 9, 2012 at 9:08 PM, Li, Qing wrote:
> I have not followed this thread closely from the beginning, so let me confirm.
>
> Are you reporting multiple bugs: 1) ndp entries remain after the removal of
> an address (according to the thread title), and 2) you believe there is a
> race condi
-Qing
From: Ryan Stone [ryst...@gmail.com]
Sent: Monday, April 09, 2012 4:50 PM
To: Li, Qing
Cc: freebsd-net
Subject: Re: Removing an IPv6 address does not remove NDP entries on that subnet
On Mon, Apr 9, 2012 at 5:46 PM, Li, Qing wrote:
> Could you plea
On Mon, Apr 9, 2012 at 5:46 PM, Li, Qing wrote:
> Could you please share with me a call path that you believe is
> problematic, or a simple test case that uncovers the issue ?
I cannot because it is literally impossible for
in6_lltable_prefix_free() to ever be called.
test case that uncovers the issue ?
--Qing
> -Original Message-
> From: owner-freebsd-...@freebsd.org [mailto:owner-freebsd-
> n...@freebsd.org] On Behalf Of Li, Qing
> Sent: Monday, April 02, 2012 10:54 AM
> To: Ryan Stone
> Cc: freebsd-net
> Subject: RE: Removing
>
> On Fri, Mar 30, 2012 at 12:28 AM, Li, Qing wrote:
> >> * In a way this is a good thing as in6_lltable_prefix_free() is
> >> guaranteed to crash your kernel in two different ways, and that's
> not
> >> counting the race conditions that it's subject to.
> >>
> >
> > Could you please elab
On Fri, Mar 30, 2012 at 12:28 AM, Li, Qing wrote:
>> * In a way this is a good thing as in6_lltable_prefix_free() is
>> guaranteed to crash your kernel in two different ways, and that's not
>> counting the race conditions that it's subject to.
>>
>
> Could you please elaborate with some det
>
> Currently, if you remove an IPv4 address from an interface, all ARP
> cache entries on its subnet are invalidated. However, the same thing
> is not done for NDP cache entries when an IPv6 address is removed*.
> Is this correct behaviour? It seems weird to have IPv4 and IPv6
> behave differen
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