[ 1681.012608][T17148] gre: GRE over IPv4 demultiplexer driver
[ 1681.546451][T17171] ip_gre: GRE over IPv4 tunneling driver
[ 1686.286519][T17375] ping (17375) used greatest stack depth: 24016 bytes left
[ 1687.458359][T17426] ping (17426) used greatest stack depth: 23968 bytes left
[ 1689.600183][T17520] ping (17520) used greatest stack depth: 23408 bytes left
[ 1698.200445][T17745] ip6_gre: GRE over IPv6 tunneling driver
[ 1702.103630][  T394] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1704.279678][T14759] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1709.143572][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1711.256559][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1713.175575][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1715.287563][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1737.654380][T19124] ping (19124) used greatest stack depth: 22768 bytes left