[ 3211.264415][T27759] gre: GRE over IPv4 demultiplexor driver
[ 3212.378796][T27782] ip_gre: GRE over IPv4 tunneling driver
[ 3247.411453][T28354] ip6_gre: GRE over IPv6 tunneling driver
[ 3262.111175][T28604] ping (28604) used greatest stack depth: 23568 bytes left
[ 3271.799550][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3275.575485][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3278.903509][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3282.679489][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3333.743214][T29734] ping (29734) used greatest stack depth: 22416 bytes left