[ 1383.234378][T31037] gre: GRE over IPv4 demultiplexer driver
[ 1383.683592][T31060] ip_gre: GRE over IPv4 tunneling driver
[ 1398.814337][T31632] ip6_gre: GRE over IPv6 tunneling driver
[ 1404.053628][T31881] ping (31881) used greatest stack depth: 23872 bytes left
[ 1408.709522][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1410.693495][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1412.485497][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1414.470496][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1434.507568][  T545] ping (545) used greatest stack depth: 23784 bytes left