[ 1341.618789][T27559] gre: GRE over IPv4 demultiplexer driver
[ 1342.070630][T27582] ip_gre: GRE over IPv4 tunneling driver
[ 1348.992501][T27928] ping (27928) used greatest stack depth: 22808 bytes left
[ 1356.938612][T28153] ip6_gre: GRE over IPv6 tunneling driver
[ 1366.618784][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1368.538753][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1370.329758][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1372.313774][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!