[ 4438.436427][T21544] gre: GRE over IPv4 demultiplexer driver
[ 4440.266082][T21567] ip_gre: GRE over IPv4 tunneling driver
[ 4491.111597][T22139] ip6_gre: GRE over IPv6 tunneling driver
[ 4509.542204][T18661] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 4521.659476][T22483] ping (22483) used greatest stack depth: 23440 bytes left
[ 4527.014076][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4532.262075][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4536.742051][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4541.926033][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!