[   28.017260] gre: GRE over IPv4 demultiplexer driver
[   28.021853] ip6_gre: GRE over IPv6 tunneling driver
[   28.037374] ip6_tunnel: g1 xmit: Local address not yet configured!
[   28.050640] ip6_tunnel: g1 xmit: Local address not yet configured!
[   28.642374] ip6_tunnel: g2 xmit: Local address not yet configured!
[   28.652320] ip6_tunnel: g2 xmit: Local address not yet configured!