[ 1564.390475][ T1198] gre: GRE over IPv4 demultiplexer driver
[ 1564.814739][ T1221] ip_gre: GRE over IPv4 tunneling driver
[ 1580.415794][ T1793] ip6_gre: GRE over IPv6 tunneling driver
[ 1584.774511][ T1993] ping (1993) used greatest stack depth: 22704 bytes left
[ 1590.623735][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1592.607703][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1594.462709][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1596.447694][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!