[ 1549.637757][T14135] gre: GRE over IPv4 demultiplexer driver
[ 1550.152362][T14158] ip_gre: GRE over IPv4 tunneling driver
[ 1565.844738][T14732] ip6_gre: GRE over IPv6 tunneling driver
[ 1573.353352][T15075] ping (15075) used greatest stack depth: 23072 bytes left
[ 1576.185516][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1578.233462][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1580.090452][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1582.073462][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!