[ 1303.129762][T17179] gre: GRE over IPv4 demultiplexer driver
[ 1303.617367][T17202] ip_gre: GRE over IPv4 tunneling driver
[ 1309.117546][T17454] ping (17454) used greatest stack depth: 24096 bytes left
[ 1319.379496][T17773] ip6_gre: GRE over IPv6 tunneling driver
[ 1323.773912][T17972] ping (17972) used greatest stack depth: 23664 bytes left
[ 1329.734032][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1331.716995][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1333.573000][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1335.557998][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!