[ 4642.405680][T24694] gre: GRE over IPv4 demultiplexor driver
[ 4644.567367][T24717] ip_gre: GRE over IPv4 tunneling driver
[ 4644.640337][T24716] ip (24716) used greatest stack depth: 23552 bytes left
[ 4710.025896][T25297] ip6_gre: GRE over IPv6 tunneling driver
[ 4732.744967][T25496] ping (25496) used greatest stack depth: 22656 bytes left
[ 4755.614280][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4762.013208][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4767.197228][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4773.341222][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!