[ 1453.061535][T31127] gre: GRE over IPv4 demultiplexer driver
[ 1453.517671][T31150] ip_gre: GRE over IPv4 tunneling driver
[ 1468.245165][T31723] ip6_gre: GRE over IPv6 tunneling driver
[ 1471.579704][   T66] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1475.203027][T32067] ping (32067) used greatest stack depth: 23208 bytes left
[ 1477.971626][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1479.892630][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1481.684626][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1483.603638][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!