[ 4696.337529][T24504] gre: GRE over IPv4 demultiplexor driver
[ 4698.564367][T24527] ip_gre: GRE over IPv4 tunneling driver
[ 4763.007446][T25098] ip6_gre: GRE over IPv6 tunneling driver
[ 4792.397830][T25351] ping (25351) used greatest stack depth: 23600 bytes left
[ 4809.457417][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4815.793270][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4821.041276][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4827.185260][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4992.564829][T27068] ping (27068) used greatest stack depth: 23200 bytes left