[libvirt] [PATCH 0/7] Introduce API for dumping domain IP addresses

[Alex Jia]

On 06/08/2012 05:13 PM, Michal Privoznik wrote:
> On 08.06.2012 11:02, Alex Jia wrote:
>> On 06/08/2012 04:04 PM, Michal Privoznik wrote:
>>> This feature has been requested for a very long time. However,
>> I'm very glad to see this patch :-)
>>> we had to wait for guest agent to obtain reliable results as
>> Yeah, it's a good way to get guest IP by GA, the disadvantage is we have
>> to depend on
>> GA installation the guest, sometimes, it probably is a trouble thing,
>> for example, I use
>> virt-v2v to convert a existing ESX VM into libvirt then the ESX VM
>> impossible had GA
>> installation ago, if I want to automate to finish all of stuff, but I
>> don't know VM IP address,
>> so I can't automatically install GA in the converted VM, it may be a
>> special case for you.
>>
>> However, 'tcpdump' or 'nmap' can do the same thing without GA
>> installation in the guest,
>> maybe, we may have optional solution for how to get guest IP, of course,
>> it's just my idea.
> I do agree. But a guest can be evil and send spoofed packets, or just
Indeed.
> run another guest inside which makes it hard to recognize which guest an
> IP belongs to. But I think this can be implemented anyway - but must
It should be not a question, because we may easy to know guest's MAC 
address then
map MAC address into IP address.
> make sure users know abut certain unreliability of such method.
>
> Michal