[ 1510.077088][  T444] gre: GRE over IPv4 demultiplexer driver
[ 1510.553632][  T467] ip_gre: GRE over IPv4 tunneling driver
[ 1526.342690][ T1039] ip6_gre: GRE over IPv6 tunneling driver
[ 1531.812308][ T1289] ping (1289) used greatest stack depth: 23320 bytes left
[ 1531.945949][T25986] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1536.698867][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1538.745875][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1540.665868][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1542.649870][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!