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Date:   Thu, 16 Jan 2020 16:43:28 +0200
From:   kortstro <>
Subject: Re: [PATCH] net: ip6_gre: fix moving ip6gre between namespaces

On 1/16/20 4:02 PM, Nicolas Dichtel wrote:
> 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)?
This was only verified in real use with ip6gretap.

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