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I have reported it on neutron project
https://bugs.launchpad.net/neutron/+bug/1334926


On Fri, Jun 27, 2014 at 5:07 AM, Vishvananda Ishaya <vishvananda at gmail.com>
wrote:

> I missed that going in, but it appears that clean_conntrack is not done on
> disassociate, just during migration. It sounds like we should remove the
> explicit call in migrate, and just always call it from remove_floating_ip.
>
> Vish
>
> On Jun 26, 2014, at 1:48 PM, Brian Haley <brian.haley at hp.com> wrote:
>
> > Signed PGP part
> > I believe nova-network does this by using 'conntrack -D -r $fixed_ip'
> when the
> > floating IP goes away (search for clean_conntrack), Neutron doesn't when
> it
> > removes the floating IP.  Seems like it's possible to close most of that
> gap
> > in the l3-agent - when it removes the IP from it's qg- interface it can
> do a
> > similar operation.
> >
> > -Brian
> >
> > On 06/26/2014 03:36 PM, Vishvananda Ishaya wrote:
> > > I believe this will affect nova-network as well. We probably should use
> > > something like the linux cutter utility to kill any ongoing connections
> > > after we remove the nat rule.
> > >
> > > Vish
> > >
> > > On Jun 25, 2014, at 8:18 PM, Xurong Yang <idopra at gmail.com> wrote:
> > >
> > >> Hi folks,
> > >>
> > >> After we create an SSH connection to a VM via its floating ip, even
> > >> though we have removed the floating ip association, we can still
> access
> > >> the VM via that connection. Namely, SSH is not disconnected when the
> > >> floating ip is not valid. Any good solution about this security issue?
> > >>
> > >> Thanks Xurong Yang _______________________________________________
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> > >
> > >
> > >
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> >
> >
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