[ 1310.411730][T14268] gre: GRE over IPv4 demultiplexer driver
[ 1310.940472][T14291] ip_gre: GRE over IPv4 tunneling driver
[ 1316.596822][T14543] ping (14543) used greatest stack depth: 23376 bytes left
[ 1326.939592][T14862] ip6_gre: GRE over IPv6 tunneling driver
[ 1332.486959][T15111] ping (15111) used greatest stack depth: 23208 bytes left
[ 1337.385017][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1339.432989][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1341.287999][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1343.272995][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!