[ 4168.736125][T21146] gre: GRE over IPv4 demultiplexor driver
[ 4170.264405][T21169] ip_gre: GRE over IPv4 tunneling driver
[ 4216.936158][T21741] ip6_gre: GRE over IPv6 tunneling driver
[ 4240.091259][T22042] ping (22042) used greatest stack depth: 24048 bytes left
[ 4244.416131][T17221] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 4248.958992][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4253.632006][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4257.727995][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4262.527010][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4389.053770][T23800] ping (23800) used greatest stack depth: 23936 bytes left