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[Xen-devel] Re: [LINUX] ipv6: Disable addrconf on Xen bridge device

To: Keir Fraser <keir@xxxxxxxxxxxxx>, Xen Development Mailing List <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] Re: [LINUX] ipv6: Disable addrconf on Xen bridge device
From: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Date: Tue, 23 Jan 2007 17:53:11 +1100
Cc: Gerd Hoffmann <kraxel@xxxxxxx>
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On Tue, Jan 02, 2007 at 01:35:41PM +1100, herbert wrote:
> 
> [LINUX] ipv6: Disable addrconf on Xen bridge device
> 
> The ipv6-no-autoconf patch didn't disable IPv6 addrconf completely.
> This means that the Xen bridge device still interfered with normal
> IPv6 operation by engaging the IPv6 network with a bogus MAC address.
> 
> For details please refer to
> 
>       https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=200360
> 
> The following patch completely disables IPv6 on the Xen bridge device
> by temporarily setting the MTU to a value less than the minimum allowed
> for IPv6.
> 
> Upstream will provide a cleaner way to disable IPv6 addrconf in future,
> possibly in the form of a proc sysctl.  Of course if the Xen loopback
> device is removed it would render this change unnecessary.
> 
> Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>

Any comments on this patch? If you have a better solution I'd love
to know.

Thanks,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt

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