[ 1450.369007][T17266] gre: GRE over IPv4 demultiplexer driver
[ 1450.795664][T17289] ip_gre: GRE over IPv4 tunneling driver
[ 1466.149219][T17860] ip6_gre: GRE over IPv6 tunneling driver
[ 1470.442485][T18059] ping (18059) used greatest stack depth: 23120 bytes left
[ 1476.243440][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1478.227418][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1480.082405][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1482.066415][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!