[ 3264.553346][T26191] gre: GRE over IPv4 demultiplexor driver
[ 3265.781571][T26215] ip_gre: GRE over IPv4 tunneling driver
[ 3301.974703][T26789] ip6_gre: GRE over IPv6 tunneling driver
[ 3308.785638][T10856] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3316.861499][T27052] ping (27052) used greatest stack depth: 23360 bytes left
[ 3326.577484][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3330.288488][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3333.488478][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3337.264481][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!