[ 4435.354184][T25941] gre: GRE over IPv4 demultiplexor driver [ 4437.372008][T25965] ip_gre: GRE over IPv4 tunneling driver [ 4499.026677][T26538] ip6_gre: GRE over IPv6 tunneling driver [ 4506.520349][T26599] ping (26599) used greatest stack depth: 23008 bytes left [ 4541.681546][ C0] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4547.570424][ C3] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4552.561466][ C3] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4558.641430][ C3] ip6_tunnel: tep0 xmit: Local address not yet configured!