[ 3810.971776][T17798] gre: GRE over IPv4 demultiplexor driver
[ 3813.130017][T17821] ip_gre: GRE over IPv4 tunneling driver
[ 3875.308915][T18400] ip6_gre: GRE over IPv6 tunneling driver
[ 3919.160294][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3925.111235][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3930.168163][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3936.311183][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4095.784550][T20356] ping (20356) used greatest stack depth: 22752 bytes left