[ 1488.292702][T13027] gre: GRE over IPv4 demultiplexer driver
[ 1488.755378][T13050] ip_gre: GRE over IPv4 tunneling driver
[ 1494.533869][T13304] ping (13304) used greatest stack depth: 23312 bytes left
[ 1505.122521][T13624] ip6_gre: GRE over IPv6 tunneling driver
[ 1510.892084][T13874] ping (13874) used greatest stack depth: 22928 bytes left
[ 1515.912798][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1517.959757][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1519.879760][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1521.991756][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!