netdev - Re: [PATCH] ipv6: default route for link local address is not added while assigning a address

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Message-ID: <52EF3EF2.30900@linux.vnet.ibm.com>
Date:	Mon, 03 Feb 2014 12:32:10 +0530
From:	Sohny Thomas <sthomas@...ux.vnet.ibm.com>
To:	nicolas.dichtel@...nd.com, netdev <netdev@...r.kernel.org>,
	linux-kernel@...r.kernel.org, yoshfuji@...ux-ipv6.org,
	davem@...emloft.net, kumuda <kumuda@...ux.vnet.ibm.com>
Subject: Re: [PATCH] ipv6: default route for link local address is not added
 while assigning a address

On Wednesday 29 January 2014 04:08 PM, Nicolas Dichtel wrote:
> Le 29/01/2014 07:41, Sohny Thomas a écrit :
>> Resending this on netdev mailing list:
>> Default route for link local address is configured automatically if
>> NETWORKING_IPV6=yes is in ifcfg-eth*.
>> When the route table for the interface is flushed and a new address is
>> added to
>> the same device with out removing linklocal addr, default route for
>> link local
>> address has to added by default.
>>
>> I have found the issue to be caused by this checkin
>>
>> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/net/ipv6?id=62b54dd91567686a1cb118f76a72d5f4764a86dd
>>
>>
>>
>> According to this change :
>> He removes adding a link local route if any other address is added ,
>> applicable
>> across all interfaces though there's mentioned only lo interface
>> So below patch fixes for other devices
>>
>> Signed-off-by: Sohny THomas <sohthoma@...ux.vnet.ibm.com>
> Your email client has corrupted the patch, it cannot be applied.
> Please read Documentation/email-clients.txt
Sorry about that. Will resend again
>
> About the patch, I still think that the flush is too agressive. Link local
> routes are marked as 'proto kernel', removing them without the link local
> address is wrong.
>
> With this patch, you will add a link local route even if you don't have
> a link local address.
I think it wouldn't hurt to have a Link local route for NDP  in case a 
the routes become unreachable

-Regards,
Sohny
>
>
>

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