[ 1664.394797][T15557] gre: GRE over IPv4 demultiplexer driver
[ 1664.885222][T15580] ip_gre: GRE over IPv4 tunneling driver
[ 1680.489164][T16151] ip6_gre: GRE over IPv6 tunneling driver
[ 1685.874904][T16401] ping (16401) used greatest stack depth: 23320 bytes left
[ 1687.134979][T16474] ip (16474) used greatest stack depth: 23160 bytes left
[ 1690.696454][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1692.681420][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1694.473417][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1696.456427][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!