[ 1452.754453][T11896] gre: GRE over IPv4 demultiplexer driver
[ 1453.206843][T11919] ip_gre: GRE over IPv4 tunneling driver
[ 1458.562350][T12172] ping (12172) used greatest stack depth: 23200 bytes left
[ 1468.731160][T12491] ip6_gre: GRE over IPv6 tunneling driver
[ 1478.836528][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1480.819504][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1482.676493][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1484.659490][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!