[  638.069682] gre: GRE over IPv4 demultiplexer driver
[  638.074806] ip6_gre: GRE over IPv6 tunneling driver
[  638.087788] ip6_tunnel: g1 xmit: Local address not yet configured!
[  638.099706] ip6_tunnel: g1 xmit: Local address not yet configured!
[  638.702256] ip6_tunnel: g2 xmit: Local address not yet configured!
[  638.712375] ip6_tunnel: g2 xmit: Local address not yet configured!