[  747.490693] gre: GRE over IPv4 demultiplexer driver
[  747.493415] ip6_gre: GRE over IPv6 tunneling driver
[  747.497192] ip6_tunnel: g1 xmit: Local address not yet configured!
[  747.500691] ip6_tunnel: g1 xmit: Local address not yet configured!
[  747.661843] ip6_tunnel: g2 xmit: Local address not yet configured!
[  747.664745] ip6_tunnel: g2 xmit: Local address not yet configured!