[  637.642681] gre: GRE over IPv4 demultiplexer driver
[  637.648086] ip6_gre: GRE over IPv6 tunneling driver
[  637.652998] ip6_tunnel: g1 xmit: Local address not yet configured!
[  637.657130] ip6_tunnel: g1 xmit: Local address not yet configured!
[  637.815218] ip6_tunnel: g2 xmit: Local address not yet configured!
[  637.817877] ip6_tunnel: g2 xmit: Local address not yet configured!