[ 4642.834462][T25444] gre: GRE over IPv4 demultiplexor driver
[ 4644.981639][T25467] ip_gre: GRE over IPv4 tunneling driver
[ 4709.672205][T26057] ip6_gre: GRE over IPv6 tunneling driver
[ 4737.573383][T26306] ping (26306) used greatest stack depth: 23328 bytes left
[ 4754.490836][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4760.889884][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4766.329790][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4772.665793][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!