Subject: Re: [patch 05/12] net namespace : ioctl to push ifa to net namespace l3

From: Daniel Lezcano <[email-masked]>
Date: Sat, 20 Jan 2007 12:48:27 +0100

Herbert Poetzl wrote:
> On Fri, Jan 19, 2007 at 04:47:19PM +0100, [email-masked] wrote:
>> From: Daniel Lezcano <[email-masked]>
>>
>> New ioctl to "push" ifaddr to a container. Actually, the push is done
>> from the current namespace, so the right word is "pull". That will be
>> changed to move ifaddr from l2 network namespace to l3.
>>
>> Signed-off-by: Daniel Lezcano <[email-masked]>
>>

[ ... ]

>> + * namespace to his l2 network namespace parent.
> 
> hmm, sounds like the address is moved between the
> namespaces? does that mean that the 'parent' will
> not see the 'isolated' ip anymore?

Yes, exact. If the IP address is visible into several namespaces (L2 
parent and L3 child), nothing ensures the two will not use the IP address.