[ 1707.871124][T13723] gre: GRE over IPv4 demultiplexer driver
[ 1708.441821][T13746] ip_gre: GRE over IPv4 tunneling driver
[ 1726.960598][T14318] ip6_gre: GRE over IPv6 tunneling driver
[ 1734.933325][T14662] ping (14662) used greatest stack depth: 23312 bytes left
[ 1737.813670][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1739.797674][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1741.589644][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1743.572648][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!