[ 1504.063856][T21154] gre: GRE over IPv4 demultiplexer driver
[ 1504.499224][T21177] ip_gre: GRE over IPv4 tunneling driver
[ 1519.182056][T21748] ip6_gre: GRE over IPv6 tunneling driver
[ 1525.973616][T22091] ping (22091) used greatest stack depth: 23208 bytes left
[ 1528.713073][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1530.634037][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1532.425041][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1534.346037][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!