[ 4417.295346][T29195] gre: GRE over IPv4 demultiplexer driver
[ 4419.072123][T29218] ip_gre: GRE over IPv4 tunneling driver
[ 4470.329566][T29806] ip6_gre: GRE over IPv6 tunneling driver
[ 4495.211180][T30055] ping (30055) used greatest stack depth: 23440 bytes left
[ 4510.003738][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4515.123661][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4519.476621][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4524.468630][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!