[ 3902.722272][ T9968] gre: GRE over IPv4 demultiplexer driver
[ 3904.433048][ T9991] ip_gre: GRE over IPv4 tunneling driver
[ 3953.732667][T10577] ip6_gre: GRE over IPv6 tunneling driver
[ 3981.954453][T10920] ping (10920) used greatest stack depth: 23648 bytes left
[ 3987.069068][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3991.932969][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3996.221963][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4001.404984][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!