[ 3300.303945][T27910] gre: GRE over IPv4 demultiplexor driver
[ 3301.888574][T27933] ip_gre: GRE over IPv4 tunneling driver
[ 3318.034990][T28192] ping (28192) used greatest stack depth: 23888 bytes left
[ 3338.970139][T28511] ip6_gre: GRE over IPv6 tunneling driver
[ 3345.847766][T11839] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3350.696669][T28711] ping (28711) used greatest stack depth: 22432 bytes left
[ 3362.871600][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3366.583597][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3369.783586][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3373.431595][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!