[ 4394.393176][T22397] gre: GRE over IPv4 demultiplexor driver [ 4396.729294][T22420] ip_gre: GRE over IPv4 tunneling driver [ 4461.417603][T23000] ip6_gre: GRE over IPv6 tunneling driver [ 4483.691888][T23199] ping (23199) used greatest stack depth: 22400 bytes left [ 4505.394373][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4511.474364][ C3] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4516.786355][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4522.994374][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured!