[ 1505.331814][T27481] gre: GRE over IPv4 demultiplexer driver
[ 1505.780602][T27504] ip_gre: GRE over IPv4 tunneling driver
[ 1511.295730][T27756] ping (27756) used greatest stack depth: 22904 bytes left
[ 1521.713003][T28082] ip6_gre: GRE over IPv6 tunneling driver
[ 1532.077106][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1534.061079][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1535.917084][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1537.964097][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!