[ 3051.909159][T16263] gre: GRE over IPv4 demultiplexor driver
[ 3053.875192][T16287] ip_gre: GRE over IPv4 tunneling driver
[ 3113.024085][T16861] ip6_gre: GRE over IPv6 tunneling driver
[ 3138.847572][T17110] ping (17110) used greatest stack depth: 21720 bytes left
[ 3154.296095][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3160.183451][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3165.175447][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3171.127470][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!