[ 1455.962991][  T734] gre: GRE over IPv4 demultiplexer driver
[ 1456.412633][  T757] ip_gre: GRE over IPv4 tunneling driver
[ 1471.865099][ T1332] ip6_gre: GRE over IPv6 tunneling driver
[ 1476.172672][ T1531] ping (1531) used greatest stack depth: 23352 bytes left
[ 1478.249653][T16247] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1481.984586][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1483.969578][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1485.824580][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1487.809585][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!