[ 4643.859137][T24724] gre: GRE over IPv4 demultiplexor driver
[ 4646.113830][T24747] ip_gre: GRE over IPv4 tunneling driver
[ 4684.513544][T25093] ping (25093) used greatest stack depth: 22736 bytes left
[ 4710.388728][T25318] ip6_gre: GRE over IPv6 tunneling driver
[ 4755.557004][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4761.956381][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4767.331413][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4773.603397][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 5012.444582][T27940] ping (27940) used greatest stack depth: 22672 bytes left