[ 1377.026099][T25004] gre: GRE over IPv4 demultiplexer driver
[ 1377.521388][T25027] ip_gre: GRE over IPv4 tunneling driver
[ 1393.343156][T25598] ip6_gre: GRE over IPv6 tunneling driver
[ 1398.865359][T25847] ping (25847) used greatest stack depth: 23168 bytes left
[ 1401.025736][    T9] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1403.737628][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1405.720640][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1407.576648][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1409.561635][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!