[ 4148.117555][T28098] gre: GRE over IPv4 demultiplexor driver
[ 4149.707868][T28121] ip_gre: GRE over IPv4 tunneling driver
[ 4197.395909][T28697] ip6_gre: GRE over IPv6 tunneling driver
[ 4225.535160][T29040] ping (29040) used greatest stack depth: 22400 bytes left
[ 4230.647283][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4235.510166][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4239.606157][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4244.470192][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!