[ 3091.598452][T17252] gre: GRE over IPv4 demultiplexor driver
[ 3093.648845][T17275] ip_gre: GRE over IPv4 tunneling driver
[ 3154.332033][T17847] ip6_gre: GRE over IPv6 tunneling driver
[ 3195.947521][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3201.899471][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3206.828460][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3212.715475][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3311.875949][T19330] ping (19330) used greatest stack depth: 22256 bytes left