linux-kernel - Re: Notifier chains bug ?

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Message-ID: <20100302153651.GC4014@hack>
Date:	Tue, 2 Mar 2010 23:42:56 +0800
From:	Américo Wang <xiyou.wangcong@...il.com>
To:	Oleg Kutkov <elenbert@...il.com>
Cc:	Américo Wang <xiyou.wangcong@...il.com>,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: Notifier chains bug ?

On Tue, Mar 02, 2010 at 07:50:01AM +0200, Oleg Kutkov wrote:
>2010/3/2 Américo Wang <xiyou.wangcong@...il.com>:
>> On Tue, Mar 2, 2010 at 8:08 AM, Oleg Kutkov <elenbert@...il.com> wrote:
>>> Hello.
>>> I try to used notifier chains for monitoring network devices events.
>>> All works perfectly when just i'm connecting/disconnecting network cable or
>>> up/down interface via ifconfig.
>>> But when i try to change interface address - nothing happens. Notifier is
>>> don't send any events :(
>>
>> I think you mean IP address? No, NETDEV_CHANGEADDR is for hardware
>> address, not for IP address.
>>
>> If you were changing mac address, you will receive NETDEV_CHANGEADDR.
>>
>
>Thank for quick answer.
>Yes, i mean IP address. And what about NETDEV_CHANGE ?

It is for rtnetlink state transition.

>Is there possible for monitoring IP address/netmask changing ?
>

AFAIK, no.

Cc'ing netdev experts...
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