[ 1525.597812][ T3446] gre: GRE over IPv4 demultiplexer driver
[ 1526.075086][ T3469] ip_gre: GRE over IPv4 tunneling driver
[ 1531.576699][ T3721] ping (3721) used greatest stack depth: 23520 bytes left
[ 1541.928882][ T4040] ip6_gre: GRE over IPv6 tunneling driver
[ 1552.356415][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1554.341371][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1556.197378][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1558.181382][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1579.228328][ T5420] ping (5420) used greatest stack depth: 23136 bytes left