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From Chiradeep Vittal <>
Subject Re: [ASFCS41] IPv6 Support
Date Mon, 14 Jan 2013 18:45:47 GMT
You can if you assume that it is of LL-type. Windows requires a registry
fix to generate an 'LL' type DUID.

You can also get dnsmasq to ignore the duid and use the mac.

On 1/14/13 9:54 AM, "Sheng Yang" <> wrote:

>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
>> our work in a feature branch as soon as possible so we can all
>> to the development.
>> Sheng, can you push any work you have done to a branch? I'll check and
>> 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 <>
>> >> 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
>> > 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
>> >
>> > 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
>> 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),
>> 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
>> write similar support in the ASF tree.
>> Johh

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