[ 3894.290105][T20337] gre: GRE over IPv4 demultiplexor driver
[ 3896.359757][T20361] ip_gre: GRE over IPv4 tunneling driver
[ 3926.970150][T20657] ping (20657) used greatest stack depth: 23216 bytes left
[ 3956.972024][T20939] ip6_gre: GRE over IPv6 tunneling driver
[ 3998.595246][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4004.484193][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4009.475177][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4015.363239][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4053.853250][T21851] ping (21851) used greatest stack depth: 23104 bytes left