[ 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!