netdev - Re: 2.6.19/2.6.20 BUG in inet_rtm_newaddr()/__inet_insert

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Message-ID: <20070310131917.GA25794@2ka.mipt.ru>
Date:	Sat, 10 Mar 2007 16:19:17 +0300
From:	Evgeniy Polyakov <johnpol@....mipt.ru>
To:	Frank van Maarseveen <frankvm@...nkvm.com>
Cc:	netdev@...r.kernel.org
Subject: Re: 2.6.19/2.6.20 BUG in inet_rtm_newaddr()/__inet_insert_ifa()

On Fri, Mar 09, 2007 at 07:22:36PM +0100, Frank van Maarseveen (frankvm@...nkvm.com) wrote:
> Ok that worked.. not as I expected. I don't understand the EINVAL and
> "ip addr" shows no broadcast address for eth0 when a classless address is
> added as the primary (and only) address like in the above example. That's
> why I tried to set it manually in the second "ip" command.

Because you might want not 

ip addr add 172.18.12.99/21 dev dummy0
ip addr add broadcast 172.18.15.255 dev dummy0

but 

ip addr add 172.18.12.99/21 broadcast 172.18.15.255 dev dummy0

Magic of local/global adresses is hidden here.

> -- 
> Frank
> -
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-- 
	Evgeniy Polyakov
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