Re: [PATCH] ipv6: default route for link local address is not addedwhile assigning a address

From: Sohny Thomas
Date: Mon Feb 03 2014 - 02:02:29 EST

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

According to this change :
He removes adding a link local route if any other address is added ,
across all interfaces though there's mentioned only lo interface
So below patch fixes for other devices

Signed-off-by: Sohny THomas <sohthoma@xxxxxxxxxxxxxxxxxx>
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


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