[ 1457.834932][T30972] ip6_gre: GRE over IPv6 tunneling driver
[ 1463.522011][T31221] ping (31221) used greatest stack depth: 22800 bytes left
[ 1468.437287][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1470.421255][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1472.276311][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1474.260269][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!