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Date:   Thu, 16 Jan 2020 15:02:58 +0100
From:   Nicolas Dichtel <>
To:     Niko Kortstrom <>,,,
Subject: Re: [PATCH] net: ip6_gre: fix moving ip6gre between namespaces

Le 16/01/2020 à 10:43, Niko Kortstrom a écrit :
> Support for moving IPv4 GRE tunnels between namespaces was added in
> commit b57708add314 ("gre: add x-netns support"). The respective change
> for IPv6 tunnels, commit 22f08069e8b4 ("ip6gre: add x-netns support")
> did not drop NETIF_F_NETNS_LOCAL flag so moving them from one netns to
> another is still denied in IPv6 case. Drop NETIF_F_NETNS_LOCAL flag from
> ip6gre tunnels to allow moving ip6gre tunnel endpoints between network
> namespaces.
> Signed-off-by: Niko Kortstrom <>
Acked-by: Nicolas Dichtel <>

Did you test real x-vrf cases with the three kinds of gre interfaces
(gre/collect_md, gretap and erspan)?

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