[  851.960409][ T4555] gre: GRE over IPv4 demultiplexor driver
[  853.215267][ T4578] ip_gre: GRE over IPv4 tunneling driver
[  892.739717][ T5150] ip6_gre: GRE over IPv6 tunneling driver
[  913.402590][ T5494] ping (5494) used greatest stack depth: 23344 bytes left
[  913.822308][  T255] ip6_tunnel: tep1 xmit: Local address not yet configured!
[  917.726097][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  921.566039][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  924.895049][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  928.670044][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!