[ 4395.927490][T29227] gre: GRE over IPv4 demultiplexer driver
[ 4397.628878][T29250] ip_gre: GRE over IPv4 tunneling driver
[ 4445.744457][T29822] ip6_gre: GRE over IPv6 tunneling driver
[ 4466.623136][T30071] ping (30071) used greatest stack depth: 22576 bytes left
[ 4479.237279][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4484.101174][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4488.262166][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4493.189156][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!