[ 4470.193371][T29185] gre: GRE over IPv4 demultiplexer driver
[ 4471.822324][T29208] ip_gre: GRE over IPv4 tunneling driver
[ 4521.620226][T29784] ip6_gre: GRE over IPv6 tunneling driver
[ 4550.944246][T30134] ping (30134) used greatest stack depth: 23440 bytes left
[ 4556.140203][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4561.133111][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4565.420198][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4570.348116][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!