[ 3233.721504][T26349] gre: GRE over IPv4 demultiplexor driver
[ 3235.160943][T26373] ip_gre: GRE over IPv4 tunneling driver
[ 3276.244813][T26949] ip6_gre: GRE over IPv6 tunneling driver
[ 3297.791255][T27292] ping (27292) used greatest stack depth: 23344 bytes left
[ 3302.023280][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3305.992229][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3309.447245][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3313.351211][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3442.288382][T29553] ping (29553) used greatest stack depth: 22304 bytes left