[  520.511743] gre: GRE over IPv4 demultiplexer driver
[  520.516152] ip6_gre: GRE over IPv6 tunneling driver
[  520.519646] ip6_tunnel: g1 xmit: Local address not yet configured!
[  520.522509] ip6_tunnel: g1 xmit: Local address not yet configured!
[  520.667633] ip6_tunnel: g2 xmit: Local address not yet configured!
[  520.670026] ip6_tunnel: g2 xmit: Local address not yet configured!