[ 1541.665057][T18891] gre: GRE over IPv4 demultiplexer driver
[ 1542.199344][T18914] ip_gre: GRE over IPv4 tunneling driver
[ 1549.601730][T19261] ping (19261) used greatest stack depth: 23504 bytes left
[ 1557.923929][T19486] ip6_gre: GRE over IPv6 tunneling driver
[ 1562.362503][T19686] ping (19686) used greatest stack depth: 23056 bytes left
[ 1565.397832][T19831] ping (19831) used greatest stack depth: 23008 bytes left
[ 1568.375828][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1570.424794][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1572.279793][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1574.263805][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!