[ 3223.660502][T26231] gre: GRE over IPv4 demultiplexor driver
[ 3224.964899][T26255] ip_gre: GRE over IPv4 tunneling driver
[ 3236.706764][T26458] ping (26458) used greatest stack depth: 23200 bytes left
[ 3261.125945][T26827] ip6_gre: GRE over IPv6 tunneling driver
[ 3271.072926][T28672] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3273.364593][T27027] ping (27027) used greatest stack depth: 22944 bytes left
[ 3286.363914][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3290.203874][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3293.596883][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3297.371904][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!