[ 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!