[ 4443.075899][T29654] gre: GRE over IPv4 demultiplexer driver
[ 4444.719003][T29678] ip_gre: GRE over IPv4 tunneling driver
[ 4465.905055][T29930] ping (29930) used greatest stack depth: 23488 bytes left
[ 4494.426776][T30250] ip6_gre: GRE over IPv6 tunneling driver
[ 4529.299787][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4534.546688][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4538.963688][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4544.083678][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4578.567752][T31161] ping (31161) used greatest stack depth: 23456 bytes left