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Date:   Wed, 20 Apr 2022 22:18:24 +0300
From:   Vladimir Oltean <>
To:     David Ahern <>
Subject: Re: IPv6 multicast with VRF

On Wed, Apr 20, 2022 at 12:59:45PM -0600, David Ahern wrote:
> Did you adjust the FIB rules? See the documentation in the kernel repo.

Sorry, I don't understand what you mean by "adjusting". I tried various
forms of adding an IPv6 multicast route on eth0, to multiple tables,
some routes more generic and some more specific, and none seem to match
when eth0 is under a VRF, for a reason I don't really know. This does
not occur with IPv4 multicast, by the way.

By documentation I think you mean Documentation/networking/vrf.rst.
I went through it but I didn't notice something that would make me
realize what the issue is.

> And add a device scope to the `get`. e.g.,
>     ip -6 route get ff02::1%eth0

I'm probably not understanding this, because:

 ip -6 route get ff02::1%eth0
Error: inet6 prefix is expected rather than "ff02::1%eth0".

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