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From Sheng Yang <>
Subject Re: [ASFCS41] IPv6 Support
Date Mon, 14 Jan 2013 17:54:21 GMT
On Sun, Jan 13, 2013 at 11:21 PM, Hugo Trippaers <> wrote:

> Side note, but where are we going to do development? I think we should get
> our work in a feature branch as soon as possible so we can all contribute
> to the development.
> Sheng, can you push any work you have done to a branch? I'll check and see
> if I need to commit any of my changes then.

We'd like to have the work based on Chiradeep's network refactor branch,
but currently we're waiting for Javelin to be merged.

And I am dong some PoC right now, so no code is written so far. I just
found it's not that straightforward to get the dnsmasq work as we thought.

We need DUID from client(not MAC) to hand out ipv6 addresses, but I am not
sure if that's something we can know from mgmt server side.


> Cheers,
> Hugo
> -----Original Message-----
> From: John Kinsella []
> Sent: vrijdag 11 januari 2013 19:50
> To:
> Subject: Re: [ASFCS41] IPv6 Support
> On Jan 10, 2013, at 11:09 AM, Sheng Yang <> wrote:
> > On Tue, Jan 8, 2013 at 10:57 PM, John Kinsella <> wrote:
> >> From a quick glance at it's man page, looks like it can do v4 and v6
> >> leases at the same time...
> > You mean dhcpd?
> >
> No, dnsmasq looked like it could...
> > I am exploring all the possibility right now.
> >
> > Currently dnsmasq in our systemvm doesn't support DHCPv6, so we would
> > either update to a newer version dnsmasq, or using other dhcp server(e.g.
> > dhcpd) on DHCPv6.
> >
> > But replacing the dhcp server is a big work, all the configuration
> > need to be rewritten. Regarding dhcpd, I haven't figured out how much
> > effort we need to spend if we want to switch.
> >
> > There is one possible solution for this release: say, using dhcpd only
> > for IPv6, to reduce our effort of introducing IPv6(if it's easier than
> > moving to dhcpd). And then we can make the choice in the later release.
> >
> > John, do you have some experiences can share regarding dhcpd?
> >
> > Also, regarding your problem, have you used cloudstack to distribute
> > IP? I don't think we support leasing on two /28s in advance network now?
> So, in my lab env I've made a few changes to the server and UI to allow
> multiple IP blocks in basic network (haven't tried in advanced yet), then
> additionally I'm passing a netmask down to the agent, then that's passed
> through to, and then into, which I've updated to
> support dhcpd.  The one thing I wanted to do but haven't is to update
> to support both dnsmasq as well as dhcpd.
> Note: this was done in-house without community involvement as I didn't
> expect general interest in this, but I'm happy to use experience gained to
> write similar support in the ASF tree.
> Johh

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