linux-kernel - Re: [PATCH net-next 3/3] vxlan: allow multiple VXLANs with same VNI for IPv6 link-local addresses

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Date:   Wed, 15 Mar 2017 16:22:57 +0100
From:   Jiri Benc <jbenc@...hat.com>
To:     Matthias Schiffer <mschiffer@...verse-factory.net>
Cc:     davem@...emloft.net, hannes@...essinduktion.org, pshelar@....org,
        aduyck@...antis.com, roopa@...ulusnetworks.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next 3/3] vxlan: allow multiple VXLANs with same VNI
 for IPv6 link-local addresses

On Wed, 15 Mar 2017 15:29:29 +0100, Matthias Schiffer wrote:
> While ensuring that the destination address is link-local iff the source
> address is would also be an option, it didn't seem too useful as the
> destination address will be a multicast address anyways in "normal" VXLAN
> configurations. If we really want to check this, I guess the valid
> combinations are:
> 
> source link-local - destination link-local UC
> source link-local - destination link-local MC
> source global/... - destination global/... UC
> source global/... - destination any MC
> 
> Does this make sense?

It does.

Thanks!

 Jiri