[ 4334.202957][T29204] gre: GRE over IPv4 demultiplexer driver
[ 4335.932750][T29228] ip_gre: GRE over IPv4 tunneling driver
[ 4387.039716][T29806] ip6_gre: GRE over IPv6 tunneling driver
[ 4409.885371][T30066] ping (30066) used greatest stack depth: 23440 bytes left
[ 4423.007800][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4427.934817][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4432.478815][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4437.471749][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!