[  597.092346] gre: GRE over IPv4 demultiplexer driver
[  597.096726] ip6_gre: GRE over IPv6 tunneling driver
[  597.109914] ip6_tunnel: g1 xmit: Local address not yet configured!
[  597.123318] ip6_tunnel: g1 xmit: Local address not yet configured!
[  597.734448] ip6_tunnel: g2 xmit: Local address not yet configured!
[  597.746204] ip6_tunnel: g2 xmit: Local address not yet configured!