[ 1331.252974][T16946] gre: GRE over IPv4 demultiplexer driver
[ 1331.465239][T16961] ip (16961) used greatest stack depth: 24048 bytes left
[ 1331.666416][T16969] ip_gre: GRE over IPv4 tunneling driver
[ 1346.892847][T17542] ip6_gre: GRE over IPv6 tunneling driver
[ 1352.118725][T17791] ping (17791) used greatest stack depth: 23856 bytes left
[ 1356.160198][T17958] ip (17958) used greatest stack depth: 23760 bytes left
[ 1356.825579][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1357.739813][T17979] ping (17979) used greatest stack depth: 23624 bytes left
[ 1358.745543][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1360.536536][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1362.520558][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!