[ 1668.355257][T29127] gre: GRE over IPv4 demultiplexer driver
[ 1668.852025][T29150] ip_gre: GRE over IPv4 tunneling driver
[ 1674.465331][T29403] ping (29403) used greatest stack depth: 23568 bytes left
[ 1684.998243][T29730] ip6_gre: GRE over IPv6 tunneling driver
[ 1692.594299][T30074] ping (30074) used greatest stack depth: 23312 bytes left
[ 1695.444518][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1697.492487][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1699.347538][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1701.396490][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1756.842834][T32341] ping (32341) used greatest stack depth: 22848 bytes left