[ 4257.180164][T29210] gre: GRE over IPv4 demultiplexer driver
[ 4258.764825][T29233] ip_gre: GRE over IPv4 tunneling driver
[ 4306.230405][T29811] ip6_gre: GRE over IPv6 tunneling driver
[ 4327.365351][T30060] ping (30060) used greatest stack depth: 23440 bytes left
[ 4340.283309][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4345.531118][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4349.756136][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4354.683157][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!