[ 1491.814209][T14805] gre: GRE over IPv4 demultiplexer driver
[ 1492.299418][T14828] ip_gre: GRE over IPv4 tunneling driver
[ 1508.391802][T15400] ip6_gre: GRE over IPv6 tunneling driver
[ 1512.832065][T15600] ping (15600) used greatest stack depth: 23832 bytes left
[ 1513.881259][T15650] ping (15650) used greatest stack depth: 23824 bytes left
[ 1518.807721][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1520.790695][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1522.646697][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1524.694770][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!