[ 1530.063896][T31674] gre: GRE over IPv4 demultiplexer driver
[ 1530.555953][T31697] ip_gre: GRE over IPv4 tunneling driver
[ 1546.370903][T32269] ip6_gre: GRE over IPv6 tunneling driver
[ 1551.921728][T32518] ping (32518) used greatest stack depth: 23072 bytes left
[ 1552.071827][   T10] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1556.863053][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1558.847057][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1560.703039][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1562.752037][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!