[ 4451.100214][T25940] gre: GRE over IPv4 demultiplexor driver
[ 4453.137679][T25963] ip_gre: GRE over IPv4 tunneling driver
[ 4479.349588][T26215] ping (26215) used greatest stack depth: 22624 bytes left
[ 4513.680539][T26536] ip6_gre: GRE over IPv6 tunneling driver
[ 4556.850403][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4562.929262][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4567.858265][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4573.874270][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!