[ 1312.498630][T31994] gre: GRE over IPv4 demultiplexer driver
[ 1313.032674][T32017] ip_gre: GRE over IPv4 tunneling driver
[ 1329.767381][T32588] ip6_gre: GRE over IPv6 tunneling driver
[ 1337.936699][  T463] ping (463) used greatest stack depth: 22608 bytes left
[ 1338.130843][ T4429] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1340.915789][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1343.026788][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1345.075796][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1347.186801][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!