[ 1732.259917][T17546] gre: GRE over IPv4 demultiplexer driver
[ 1732.804596][T17569] ip_gre: GRE over IPv4 tunneling driver
[ 1740.898416][T17915] ping (17915) used greatest stack depth: 23152 bytes left
[ 1749.653681][T18140] ip6_gre: GRE over IPv6 tunneling driver
[ 1755.594984][T18389] ping (18389) used greatest stack depth: 22952 bytes left
[ 1760.732575][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1762.844555][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1764.828548][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1766.940539][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!