[  520.756792] gre: GRE over IPv4 demultiplexer driver
[  520.760563] ip6_gre: GRE over IPv6 tunneling driver
[  520.763868] ip6_tunnel: g1 xmit: Local address not yet configured!
[  520.768901] ip6_tunnel: g1 xmit: Local address not yet configured!
[  520.926671] ip6_tunnel: g2 xmit: Local address not yet configured!
[  520.929431] ip6_tunnel: g2 xmit: Local address not yet configured!