[ 1490.460084][  T715] gre: GRE over IPv4 demultiplexer driver
[ 1490.900371][  T738] ip_gre: GRE over IPv4 tunneling driver
[ 1506.424613][ T1310] ip6_gre: GRE over IPv6 tunneling driver
[ 1511.818420][ T1559] ping (1559) used greatest stack depth: 23344 bytes left
[ 1516.669124][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1518.652098][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1520.509090][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1522.493094][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!