[ 3389.830465][T31439] gre: GRE over IPv4 demultiplexor driver [ 3390.971742][T31463] ip_gre: GRE over IPv4 tunneling driver [ 3426.227556][T32037] ip6_gre: GRE over IPv6 tunneling driver [ 3443.619405][T32330] ping (32330) used greatest stack depth: 22352 bytes left [ 3450.830112][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 3454.606013][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 3457.934002][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 3461.710997][ C3] ip6_tunnel: tep0 xmit: Local address not yet configured!