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From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Subject: Re: IPv6 Policy based routing not working.
Date: Wed, 27 Aug 2014 08:05:46 +0200
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To: Tushar Shinde <mtk.tushar@gmail.com>
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On Mi, 2014-08-27 at 11:32 +0530, Tushar Shinde wrote:
> So do we need to always use ipv6 address to bind unlike ipv4?

No, I think SO_BINDTODEVICE should work. But ping6 does not use it, so
one could add support for this to ping with a new option.

ping6 uses cmsg with undefined ipv6 source address but set ifindex and
that's not at all like SO_BINDTODEVICE.

Bye,
Hannes