[ 1408.123871][T12973] gre: GRE over IPv4 demultiplexer driver
[ 1408.559177][T12996] ip_gre: GRE over IPv4 tunneling driver
[ 1424.296312][T13568] ip6_gre: GRE over IPv6 tunneling driver
[ 1424.848696][  T526] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1428.040692][  T526] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1429.965365][T13824] ping (13824) used greatest stack depth: 23320 bytes left
[ 1432.159179][T10156] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1434.888643][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1436.873635][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1438.728642][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1440.713637][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!