[ 1485.683017][  T873] gre: GRE over IPv4 demultiplexer driver
[ 1486.130599][  T896] ip_gre: GRE over IPv4 tunneling driver
[ 1501.657707][ T1481] ip6_gre: GRE over IPv6 tunneling driver
[ 1506.988504][ T1731] ping (1731) used greatest stack depth: 23344 bytes left
[ 1511.803480][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1513.787441][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1515.579436][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1517.564438][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!