[ 1526.178311][T12997] gre: GRE over IPv4 demultiplexer driver
[ 1526.617265][T13020] ip_gre: GRE over IPv4 tunneling driver
[ 1542.165836][T13592] ip6_gre: GRE over IPv6 tunneling driver
[ 1547.586788][T13849] ping (13849) used greatest stack depth: 23320 bytes left
[ 1552.377689][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1554.362651][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1556.218645][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1558.202660][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1609.833754][T16126] ping (16126) used greatest stack depth: 23008 bytes left