[ 4768.865247][T24508] gre: GRE over IPv4 demultiplexor driver [ 4770.982652][T24531] ip_gre: GRE over IPv4 tunneling driver [ 4793.223570][T24733] ping (24733) used greatest stack depth: 23008 bytes left [ 4834.181262][T25102] ip6_gre: GRE over IPv6 tunneling driver [ 4878.068508][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4884.276391][ C3] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4889.459377][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4895.667401][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured!