[ 3186.787876][T23673] gre: GRE over IPv4 demultiplexer driver
[ 3188.433449][T23696] ip_gre: GRE over IPv4 tunneling driver
[ 3216.724818][T24042] ping (24042) used greatest stack depth: 23576 bytes left
[ 3237.226803][T24267] ip6_gre: GRE over IPv6 tunneling driver
[ 3258.386547][T12874] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3265.490265][T24610] ping (24610) used greatest stack depth: 23264 bytes left
[ 3270.546412][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3275.410443][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3279.569432][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3284.433427][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3354.330592][T25647] ping (25647) used greatest stack depth: 23072 bytes left