Subject: Re: [PATCH] net/ipv4/ip_gre.c net/ipv6/ip6_gre.c: ip and gre header are recorded twice

From: Jakub Kicinski <[email-masked]>
Date: Fri, 1 Jul 2022 18:31:51 -0700

On Tue, 28 Jun 2022 18:18:27 +0300 Aleksey Shumnik wrote:
> pre-up ip tunnel add mgre0 mode ip6gre local 4444::1111 key 1 ttl 64 tos inherit

I can't get GRE6 tunnels to work as NBMA net at all.
AFAICT ip6gre_tunnel_xmit() takes the endpoint addresses straight 
from the netdev, only ip6tnl seems to be doing a lookup.
Am I doing it wrong?