That is correct, Xu Han!


> On Jan 22, 2014, at 11:14 AM, "Xuhan Peng" <[email protected]> wrote:
> 
> Ian, 
> 
> I think the last "two attributes" PDF from Shixiong's last email is trying to 
> solve the problem you are saying, right?
> —
> Xu Han Peng (xuhanp)
> 
> 
>> On Wed, Jan 22, 2014 at 8:15 PM, Ian Wells <[email protected]> wrote:
>>> On 21 January 2014 22:46, Veiga, Anthony <[email protected]> 
>>> wrote:
>>> 
>>> Hi, Sean and Xuhan:
>>> 
>>> I totally agree. This is not the ultimate solution with the assumption that 
>>> we had to use “enable_dhcp”.
>>> 
>>> We haven’t decided the name of another parameter, however, we are open to 
>>> any suggestions. As we mentioned during the meeting, the second parameter 
>>> should highlight the need of addressing. If so, it should have at least 
>>> four values:
>>> 
>>> 1) off (i.e. address is assigned by external devices out of OpenStack 
>>> control)
>>> 2) slaac (i.e. address is calculated based on RA sent by OpenStack dnsmasq)
>>> 3) dhcpv6-stateful (i.e. address is obtained from OpenStack dnsmasq acting 
>>> as DHCPv6 stateful server)
>>> 4) dhcpv6-stateless (i.e. address is calculated based on RA sent from 
>>> either OpenStack dnsmasq, or external router, and optional information is 
>>> retrieved from OpenStack dnsmasq acting as DHCPv6 stateless server)
>> 
>> So how does this work if I have an external DHCPv6 server and an internal 
>> router?  (How baroque do we have to get?)  enable_dhcp, for backward 
>> compatibility reasons, should probably disable *both* RA and DHCPv6, despite 
>> the name, so we can't use that to disable the DHCP server.  We could add a 
>> *third* attribute, which I hate as an idea but does resolve the problem - 
>> one flag for each of the servers, one for the mode the servers are operating 
>> in, and enable_dhcp which needs to DIAF but will persist till the API is 
>> revved.
>> -- 
>> Ian.
> 
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