[ 3130.887219][T26274] gre: GRE over IPv4 demultiplexor driver
[ 3132.121759][T26298] ip_gre: GRE over IPv4 tunneling driver
[ 3168.646846][T26872] ip6_gre: GRE over IPv6 tunneling driver
[ 3185.870296][T27165] ping (27165) used greatest stack depth: 22400 bytes left
[ 3186.225443][T26301] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3192.944344][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3196.720374][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3200.048351][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3203.760391][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!