My misunderstanding, I thought that's the link-local ip in Xenserver or KVM:-)

If a VM is on both IPv6 and IPv4 network, what's the link-local address? IPv4? 
IPv6? Both?


Anthony

> -----Original Message-----
> From: Sheng Yang [mailto:sh...@yasker.org]
> Sent: Thursday, January 17, 2013 10:13 AM
> To: cloudstack-dev@incubator.apache.org
> Subject: Re: [DISCUSS] IPv6 support draft functional spec(phase 1)
> 
> On Thu, Jan 17, 2013 at 9:49 AM, Anthony Xu <xuefei...@citrix.com>
> wrote:
> > Thanks for the write-up,
> >
> > One comment,
> > Is there any reason not use link-local IPv4 address?
> >
> >>*User VM would have one link-local IPv6 address
> 
> IPv6 required one auto configured link local address per nic(means
> likely one nic would have more than one IP address, and in the
> different subnet), and the link local address would be used to send
> out DHCP request etc(http://tools.ietf.org/html/rfc3315). It's also
> the basic of Neighbor discovery mechanism in
> IPv6(http://tools.ietf.org/html/rfc4861).
> 
> I think IPv4 link-local is less relevant in this case...
> 
> --Sheng
> >
> >> -----Original Message-----
> >> From: Sheng Yang [mailto:sh...@yasker.org]
> >> Sent: Wednesday, January 16, 2013 7:11 PM
> >> To: cloudstack-dev@incubator.apache.org
> >> Subject: [DISCUSS] IPv6 support draft functional spec(phase 1)
> >>
> >> Hi,
> >>
> >> The first draft of IPv6 FS is available at
> >> https://cwiki.apache.org/confluence/display/CLOUDSTACK/IPv6+support
> >> now.
> >>
> >> Basically based on our previous discussion, we would like to stick
> to
> >> dnsmasq, and assume shared network for advance zone in the phase one,
> >> to make thing as simple as possible in phase 1.
> >>
> >> Comments/questions are welcome!
> >>
> >> --Sheng

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