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xen-devel
RE: [Xen-devel] ipv6 addresses on vifX.Y interfaces and bridges
> On Mon, Jan 07, 2008 at 09:26:43AM +1100, James Harper wrote:
> > The network scripts appear to set noarp on all the vifX.Y and
xen-brX
> > interfaces, but I also need to remove the IPv6 address and stop the
> > interfaces participating in autoconfiguration...
> >
> > Has anyone done this already?
>
> You don't need to remove the link-local IPv6 addresses, they are
harmless.
> The key is to stop auto-conf taking place on the bridge. The way todo
> this is to set the mtu of the bridge to something tiny (eg 68) before
> bringing the interface up, and then once it is up, restore the mtu to
> its normal 1500.
>
> This was previously merged in xen-unstable, in 13364
>
That sounds a bit kludgy... wouldn't it be better to make use of
/proc/sys/net/ipv6/<interface>/autoconf and/or .../accept_ra?
Wouldn't the bridge just autoconf next time an ra is sent once its mtu
is back up to 1500?
Thanks
James
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