[ 3448.503060][T28777] gre: GRE over IPv4 demultiplexor driver
[ 3449.676889][T28800] ip_gre: GRE over IPv4 tunneling driver
[ 3485.911768][T29380] ip6_gre: GRE over IPv6 tunneling driver
[ 3503.908051][   T31] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3510.818913][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3514.594941][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3517.987909][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3521.763942][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3573.602868][T30761] ping (30761) used greatest stack depth: 22480 bytes left