[  597.423490] gre: GRE over IPv4 demultiplexer driver
[  597.429747] ip6_gre: GRE over IPv6 tunneling driver
[  597.448155] ip6_tunnel: g1 xmit: Local address not yet configured!
[  597.460746] ip6_tunnel: g1 xmit: Local address not yet configured!
[  598.072656] ip6_tunnel: g2 xmit: Local address not yet configured!
[  598.082365] ip6_tunnel: g2 xmit: Local address not yet configured!