[ 4720.311034][T24834] gre: GRE over IPv4 demultiplexor driver
[ 4722.495042][T24857] ip_gre: GRE over IPv4 tunneling driver
[ 4787.622788][T25432] ip6_gre: GRE over IPv6 tunneling driver
[ 4806.640516][T25587] ping (25587) used greatest stack depth: 23600 bytes left
[ 4817.326501][T25681] ping (25681) used greatest stack depth: 23568 bytes left
[ 4827.842290][T25775] ping (25775) used greatest stack depth: 23328 bytes left
[ 4834.136603][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4840.600573][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4846.041546][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4852.440556][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!