[ 1563.606061][  T802] gre: GRE over IPv4 demultiplexer driver
[ 1564.105284][  T825] ip_gre: GRE over IPv4 tunneling driver
[ 1580.247406][ T1396] ip6_gre: GRE over IPv6 tunneling driver
[ 1584.836189][ T1602] ping (1602) used greatest stack depth: 22896 bytes left
[ 1590.914417][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1592.963371][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1594.882429][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1596.931372][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!