[ 4402.206989][T29154] gre: GRE over IPv4 demultiplexer driver
[ 4403.856563][T29177] ip_gre: GRE over IPv4 tunneling driver
[ 4454.812783][T29764] ip6_gre: GRE over IPv6 tunneling driver
[ 4483.812893][T30107] ping (30107) used greatest stack depth: 22928 bytes left
[ 4489.056947][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4494.112749][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4498.401667][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4503.393683][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!