[ 4279.948503][T21490] gre: GRE over IPv4 demultiplexer driver
[ 4281.680791][T21513] ip_gre: GRE over IPv4 tunneling driver
[ 4331.527895][T22093] ip6_gre: GRE over IPv6 tunneling driver
[ 4352.661819][T22342] ping (22342) used greatest stack depth: 23440 bytes left
[ 4365.412133][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4370.276035][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4374.501045][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4379.428056][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!