[ 1557.376949][T16800] gre: GRE over IPv4 demultiplexer driver
[ 1557.830106][T16823] ip_gre: GRE over IPv4 tunneling driver
[ 1573.748705][T17399] ip6_gre: GRE over IPv6 tunneling driver
[ 1579.266011][T17649] ping (17649) used greatest stack depth: 22464 bytes left
[ 1584.971272][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1586.956229][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1588.812227][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1591.051240][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!