[Lxc-users] IPv6 Stateless Autoconfig with radvd running on the lxc host

[John Soros]

that's a weird BOOLEAN


On Sun, 22 May 2011 15:52:23 +0200
Daniel Lezcano <daniel.lezcano at free.fr> wrote:

> On 05/22/2011 07:27 AM, Marc Haber wrote:
> > On Sat, May 21, 2011 at 10:53:56PM +0200, Daniel Lezcano wrote:
> >> On 05/21/2011 10:11 PM, Marc Haber wrote:
> >>> On Sat, May 21, 2011 at 10:07:03PM +0200, Daniel Lezcano wrote:
> >>>> Is the guest's /proc/sys/net/ipv6/conf/eth0/accept_ra set ?
> >>> It is.
> >> Can you check by setting the value to '2' and then ifdown/ifup the
> >> interface ?
> > Ok, this is interesting. Two results:
> >
> > (1)
> > With neither setting does the lxc container actively send out Router
> > Solicitations. It just sits there waiting for the next Router
> > Advertisement, which is only sent out by the radvd every 600
> > seconds.
> 
> The documentation says:
> 
>   accept_ra - BOOLEAN
>          Accept Router Advertisements; autoconfigure using them.
> 
>          Possible values are:
>                  0 Do not accept Router Advertisements.
>                  1 Accept Router Advertisements if forwarding is
> disabled. 2 Overrule forwarding behaviour. Accept Router 
> Advertisements
>                    even if forwarding is enabled.
> 
>          Functional default: enabled if local forwarding is disabled.
>                              disabled if local forwarding is enabled.
> 
> 
> > (2)
> > Only with 2 in /proc/sys/net/ipv6/conf/eth0/accept_ra, the lxc
> > container acts on an incoming Router Advertisement, which can be
> > forced by restarting the radvd. With accept_ra=2, it accepts the RA
> > and properly acts on it, while with accept_ra=1, it just ignores the
> > RA.
> >
> > Greetings
> > Marc
> >
> 
> 
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