[ 1624.976996][T17629] gre: GRE over IPv4 demultiplexer driver
[ 1625.392888][T17652] ip_gre: GRE over IPv4 tunneling driver
[ 1625.446076][T17651] ip (17651) used greatest stack depth: 23744 bytes left
[ 1640.791634][T18231] ip6_gre: GRE over IPv6 tunneling driver
[ 1646.872830][T18526] ping (18526) used greatest stack depth: 23520 bytes left
[ 1647.912435][T18576] ping (18576) used greatest stack depth: 23328 bytes left
[ 1650.748731][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1652.668700][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1654.460701][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1656.443717][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!