[ 4417.492589][T29182] gre: GRE over IPv4 demultiplexer driver
[ 4419.186533][T29205] ip_gre: GRE over IPv4 tunneling driver
[ 4469.231678][T29784] ip6_gre: GRE over IPv6 tunneling driver
[ 4498.152650][T30128] ping (30128) used greatest stack depth: 22168 bytes left
[ 4503.335650][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4508.391613][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4512.807597][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4517.863576][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!