[ 3964.257607][T19715] gre: GRE over IPv4 demultiplexor driver
[ 3966.316332][T19738] ip_gre: GRE over IPv4 tunneling driver
[ 4028.969151][T20309] ip6_gre: GRE over IPv6 tunneling driver
[ 4072.007901][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4078.151811][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4083.207782][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4089.287855][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4187.094300][T21736] ping (21736) used greatest stack depth: 22416 bytes left