[ 4446.736878][T25881] gre: GRE over IPv4 demultiplexor driver
[ 4448.751180][T25904] ip_gre: GRE over IPv4 tunneling driver
[ 4490.852008][T26323] ip (26323) used greatest stack depth: 23632 bytes left
[ 4508.415757][T26475] ip6_gre: GRE over IPv6 tunneling driver
[ 4549.361229][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4555.056165][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4559.985173][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4565.744169][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4712.554940][T28432] ping (28432) used greatest stack depth: 22848 bytes left