[ 4321.642778][T29245] gre: GRE over IPv4 demultiplexer driver
[ 4323.200879][T29268] ip_gre: GRE over IPv4 tunneling driver
[ 4369.478539][T29839] ip6_gre: GRE over IPv6 tunneling driver
[ 4396.614096][T30183] ping (30183) used greatest stack depth: 23488 bytes left
[ 4401.601943][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4406.273864][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4410.306861][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4414.977880][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!